Customer Ratings & Reviews

I've owned these earbuds for about a month and the right earbud does not stay on! It constantly randomly disconnects and shuts off. It tales pure luck for it to come back on. I wish I would've never purchased them. Very disappointed.

Although I was skeptical at first, Anker’s Next-Gen Sleep A20 Earbuds help me to fall asleep and stay asleep longer. As I tested these earbuds, I focused upon 3 components: comfort, quality, and ease of use. Comfort Soundcore tailored the earbuds to the ear’s structure for comfortable wear throughout the night. They are extremely lightweight. I hardly notice that I have them in if I get up during the night. To optimize comfort Soundcore Sleep A20 Earbuds come with small, medium, and large size tips. Additionally, Soundcore provides a sealed or breathable option for each size tip. The sealed tip masks more noise while the breathable option reduces pressure and allows sound to leak through. There are also three different sizes of Air Wings. These wings wrap around the bud to minimize pressure and ensure a snug fit. It took some experimenting to optimize the fit in my ear and a few nights to maximize comfort. Now that I am accustomed to the buds, I don't even feel them. This is because they are made out of soft materials, are lightweight, and flexible. I am a side sleeper and I don’t feel pressure in my ear canal. However, the fit is snug enough that they don’t fall out. Should a bud dislodge, Soundcore has a find my device feature. However, I haven’t needed to use it. My buds remain secure throughout the night. Even though these are passive headphones with no active noise canceling, the two different designs of ear tips offer ways to reduce noise as much as possible. I eventually decided to use the sealed tip on a regular basis. I can still converse with my spouse while wearing them and hear some sounds. The sealed tip does a credible job of masking annoying sounds like snoring or dogs barking. And, you can customize your own sleep sounds to minimize snoring disruption with Soundcore’s masking sounds. Quality First of all, the battery life is excellent. I listen to audiobooks throughout the night and the battery power remains strong. In the morning, I simply return the buds to their charging case and they are ready for my use the next night. The case requires charging every 5 to 6 days. I just charge it during the day when I don’t need to use the buds. These buds don't offer the greatest audio quality sound quality which I didn’t expect as compared to my music / audio focused buds that I use daily, but they are pretty good. That is a bonus. Also, you can’t make or receive calls which I didn’t want. I am using them to aid in falling and staying asleep along with dampening annoying noises like dogs barking or snoring. These buds should not be criticized for not being able to make calls - they are definitely for that. Ease of Use It is easy to toggle between calming sounds and Bluetooth. You can switch between Bluetooth Mode and Sleep Mode via the Soundcore app or by tapping the left earbud twice. I set my default mode to Bluetooth so I can listen to audiobooks. I also turned on the Switch from Streaming to Sleep Mode feature. The Sleep Mode is supposed to be able to tell when you have fallen asleep to stop the sounds playing. This feature doesn’t always work seamlessly for me but it isn’t a detriment. The battery stays charged and my audiobook keeps playing. The buds have various ways to adjust volume. When using them in Sleep mode, the volume of the sleep sounds can be adjusted via the Soundcore app or by tapping on the earbuds. Tapping doesn’t always work for me. I find it easier to adjust the volume in the Soundcore app or on the device I am using to play my audiobook. This is probably the main reason for knocking off a star - the controls just are not very good and the tapping is difficult to do with success. There also should be more options to customize what the tapping does...these don't provide nearly the customization of my every day buds. I suppose my phone or tablet will always be near so I can use that to control volume , play, pause, etc. but this is one area that needs improvement. At first, I found the app to be a bit challenging and the instructions limited. The app isn't as intuitive as I would like. However, updates are continually being made and I have become accustomed to how it works. It was simply a bit of a learning curve for me. Finally, I would prefer to view my sleep data without needing to have my buds connected. Overall If you enjoy listening to something as you fall asleep and to mask noise - inlcuding your partner's snoring, these will suit your purpose.

Fell out of my ears too much. The fit isn't great even with the adjustable tips.

I bought these earbuds Oct, 2024. Worked great until about 2 weeks ago. I use them only during my sleep at night; playing spa type music. Two weeks ago, the right earbud began losing its charge within 2 hours. Recharging the ear bud and case does not fix the problem.

I'm a big fan of any type of sleep buds. I had the Bose units for years until they died on me a few months ago. I've been in search of a replacement ever since. I bought the Soundcore A10's, the predecessor to the A20, and used them for two weeks. They were very quickly returned due to abysmal battery life. When the new A20's were announced, I was highly skeptical. Turns out I was wrong. The A20's fixed every issue I had with the previous version. In 3 weeks of testing, the batteries have never failed to make it through the night with ample room to spare. The buds themselves are extremely well made with a plethora of wing and ear insert options that you can use to customize the fit. The are comfortable to wear and have never fallen our during the night no matter how much I toss and turn. The sound out of them in bluetooth mode is perfectly fine. They won't out do audiophile quality earbuds, but the sound is strong and well balanced. The buds connect quicly and stay connected. In sleep mode, the adjustable volume lets you set the background noise to just the right level. They remember this setting between uses. There are a number of alarm options and,unlike the A10's which made me late for work a few times, the alarm never failed to go off on time. The software also has seen a big upgrade. I've been using the iOS app and, while it has a learning curve, is easy to use once you figure it out. Soundcore needs better tutorials, but most of it is intuitive. The old version never remembered settings after you put the bud back in the charging case. You even had to go in nightly to turn on the alarm. This new version remember everything and has options to customize your listening experience. The A20's have been a pleasure to use. My skeptisism was proven wrong. Soundcore upped their game with better fit, better quality, and better performance across the board. I highly recommend these.

Nice for a while, but now they won’t charge, after only two months of use!

Even with the volume of the “snore blocker” and other noises cranked up, these did nothing to block out any noise. Maybe they just don’t fit my ears, but I found them totally useless.

One of the first things that caught my attention was the sleek and compact design. The earbuds are incredibly lightweight, making them barely noticeable when worn. This is particularly important for sleep earbuds, as any discomfort could disrupt sleep. The earbuds come with multiple sizes of ear tips and wings, ensuring a snug fit for various ear shapes. I found the medium-sized tips to be the most comfortable for extended wear. The charging case is also compact and easy to carry, fitting comfortably in the palm of your hand. It uses a USB-C port for charging, which is a nice touch given the universal compatibility of USB-C chargers. Sound quality is a crucial aspect, especially for sleep earbuds. These deliver clear and soothing audio. The soundscapes and white noise options are well-curated, providing a variety of ambient sounds that help mask external noises effectively. I particularly enjoyed the “Rainforest” soundscape, which created a serene environment conducive to relaxation and sleep. The earbuds also have decent passive noise isolation, which further enhances their ability to create a quiet sleep environment. While they don’t have active noise cancellation, the snug fit and passive isolation work well enough to block out most ambient noises. The sound quality for regular music listening could be improved though. Battery life is another area where these excel. The earbuds themselves provide up to 10 hours of playtime on a single charge, which is more than sufficient for a full night’s sleep. The charging case holds additional charges, extending the total battery life to around 40 hours. This means I only need to charge the case once a week, even with nightly use. The earbuds also feature touch controls, which are responsive and easy to use. However, the touch sensitivity can sometimes be a bit too low, leading to unresponsive taps and changes in settings. It took me a couple of nights to get used to this while adjusting to the earbuds in bed.

I wanted to try the SoundCore Sleep A20 Bluetooth Earbuds out because I often fall asleep while wearing earbuds or headphones. I am someone who is a heavy ASMR listener at night and I usually wear headphones to get the full effect. I also like to listen to music while I sleep sometimes. I'm also a side sleeper, which often isn't comfortable with earbuds in. I either wake up with ear pain, or I lose one in my bed while tossing and turning (I am kind of a wild sleeper). Let me cut to the point: yes, I can sleep while wearing these. No, they are not uncomfortable to wear. Yes, I do recommend giving these earbuds a try. PROS: A HUGE pro about these earbuds is that they are designed to be worn while sleeping, specifically for side sleepers. One night I fell asleep wearing these after watching one of my usual ASMR videos, and I woke up 6 and 1/2 hours later with both earbuds still in my ear. I felt zero pain and zero pressure in either ear. The earbuds still felt snug and secure in my ear. While I can feel them in my ear, I don't feel like they disturbed my sleep. The ear tips are soft and designed to not create those pressure bubbles in the ear canal; that's why they don't hurt after wearing them an extended period of time. If the goal was to allow you to fall asleep while wearing them, I'd say SoundCore achieved it. The ear tips are comfortable to wear, and there are lots of size options/styles for the ear tips. They have sealed tips that are meant to block out some outside noises, and they have breathable tips that have tiny slits in them meant to help avoid that uncomfortable pressurized feeling earbuds often cause. The sealed tips come in size extra small, small, medium, and large, while the smallest size for the breathable tips is small. The earbuds have the medium sized sealed tips on them when you open the packaging. I prefer to use the sealed tips, and I wear the extra small size. I have narrow ears and I find ear buds often fall out my ear, but I was able to walk around outside with these and they didn't slip. The key is to find the right fit, so I suggest doing as SoundCore's instructions suggest and trying out the different ear tips. This will not only ensure a proper fit inside the concha, but it will also help to eliminate pain/discomfort while wearing these for an extended period. This may also help with the sound quality, since the ear buds have to be placed in the ear correctly in order to get the best audio experience. They also have ear wings to add to the comfort and make them easier to sleep in. The sound quality is decent. I enjoy listening to my music and ASMR videos on them. There is no mic so you won't be answering calls on these. They are purely meant for listening to audio. These will not pick up all of the base or heavy drums in music, but these are also meant to be worn as you sleep, so that could be why. They are great for listening to classical, smooth jazz, slow neosoul and R&B music, etc. You have to download the SoundCore app in order to configure the volume and the controls. The controls require you to double and triple tap on the buds in order to make them do the command such as pause/play, skip, or raise/lower the volume. The buds sound quality will sound faint at first until you use the app to configure them. Make sure you use the correct ear tip to help max out the sound benefits. I personally like how if I remove one ear bud, it doesn't auto-pause whatever audio I'm listening to. When I remove one bud, the sound still pays in the other, so there's no interruptions in my listening experience. Speaking of ASMR, the SoundCore app offers free sleep sounds for you to listen to, such as rain sounds, fire place sounds, soft music, nature sounds, etc. You can even configure your own custom sounds on the app. The charging case is thin, small and easily fits in most pockets. I like how compact it is. Depending on how long you use your ear buds, the charging case will take up to two hours to fully charge. I like how the charging case is wireless; I don't have to charge the case every time in order to charge the ear buds which is very convenient. The case uses a USB-C charger, so I can use a compatible wall adapter or my laptop to charge the case; the laptop charging feature is convenient for travel. Another pro of the ear buds is how easily they pair with my phone. All you have to do is turn on the Bluetooth settings, open the case to allow your phone to discover it, and select the device on your phone in order to pair the buds with it. This process was quick and easy for me. Lastly, the app has a "find my device" feature which will certainly come in handy if you misplace your things as often as I do. CONS: I personally find the ear wings difficult to put on even with the instructions. The ear tips are easy to attach, but the ear wings will take me some getting used to. The color description of my earbuds is labeled "white;" however, the color is actually a beige. This isn't a deal breaker, but if you are someone that is particular about aesthetics, this might annoy you. While I like the sleek and thin design of the charging case, the case seems easy to break and could benefit from a more durable design. The responsiveness of the controls varies. Sometimes it's too sensitive to touch. Other times it's not responsive enough. You really have to land on the exact spot to tap the controls, but sometimes it's easy to hit the spot without knowing at times. It may take some people practice to get the hang of it. Similarly, I'm not the biggest fan of the app because for me, it wasn't easy to figure out. I struggled to figure out where to go to configure the ear buds, how to download the sleep sounds they offer, etc. It also takes a while to download the sleep sounds at times. This is something an update could easily fix. I am still getting the hang of it. CONCLUSION: Overall, I am happy with the SoundCore A20 Bluetooth Earbuds and I do recommend them for side sleepers. They did not interfere with my rest. I nap with them, walk with them, and sleep with them, and I do not feel pain. I also have my tragus pierced on both ears, and I like that wearing these does not interfere with my jewelry or vice versa. If you like listening to sounds to make you sleep, are an ASMR fan, or like to listen to music to relax while laying down, try these earbuds out. You might be pleasantly surprised at their effectiveness. After some minor app and design tweaks, these will be the perfect earbuds for users like me that regularly sleep with earbuds in.

Tech support only offered a beta firmware. Tried to calibrate numerous times.

Soundcore Sleep A20 Earbuds In the box is the headphones with charging case, USB to USB-C cord, instruction manual and additional silicone ear buds from XS to Large. First Impression - I love the simplicity of the design and the small size for the case. The case is also a champagne color, so it can easily be found opposed to my other headphone cases that normally come in black. I also LOVE the magnetic charging for the buds inside of the charging case. I have owned previous cases that this type of charging where you have to move the buds around to get them to charge correctly but with this case, the earbuds nest properly and stays in place with no wiggle room. The Soundcore App - I personally own another pair of headphones from soundcore, so all I had to do was sync this pair to the app. I will say that it was a little bit of a struggle because you have to keep the charging case open whenever you need to sync to the app. In the app you can change and add the sounds and make adjustments to the headphones. For me, I am a little disappointed that you can only have 4 sounds saved at one time. There are two already saved and then you can add two more. I ended up adding space journey and cozy bedroom. Please note, this is my first time using any type of sleep sounds as I normally just use some type of simple piano music on my music streaming app if I want to listen to something to go to sleep. Not sure why but space journey is my favorite. The cozy bedroom is a repeat of a few piano notes, so I will end up deleting that one. When you go to add the sounds, there are only a few presets and there is an option to make your own custom sounds. Comfort/Sound- I am a back/side sleeper and 3 out of 5 days, I was able to keep the headphones in my ear and they didn’t move. (Please note, I wear a CPAP headgear, so it is harder for me to sleep on my side.) I will say that the 2 days that the buds were not staying in was human error because I was tired when I put them in, so I didn’t nest them in my ear properly. I slept between 5-7 hours and according to the app, I had way deeper sleep times with the buds (comparing with the Soundcore app and the Apple Health app) than without which is AMAZING! When I initially started using the earbuds, I immediately changed the silicone tips to the XS/small size because I already know that my ears are smaller, so I need small tips. The small tips are comfortable and if they are not, definitely try to re-seat the buds in your ears so that they are properly sitting in your ear. The manual does say to try all of the different sizes for comfort. I would like to note that I got these because my husband is a REALLY LOUD snorer and he needs the sound and lights of the television when sleeping. I am normally a heavy sleeper but lately, he has been going to sleep sooner than me and I am so grateful that these headphones came along because now I can drown out the noise of him sleeping and the television. For me, the earbuds do not completely noise cancel but they do cancel enough background noise for me to fall asleep and stay asleep. Battery Life - Out of the box, the charging case has 3 lights (full charge) and by day 5-6, I was down to 1 light (low charge). The app does show the earbuds charge level percentage. I was unable to locate the percentage for the charge case in the app, however, the manual does state the percentage level for each lighted dot. I would like to add that if want to change the volume or from Bluetooth to sleep mode, the taps have to be quick. I had a hard time trying to complete this and noticed when I tapped faster it finally worked. Overall, I am very pleased with this product and I would highly recommend to friends and family.

The metal changing plates touch inside of ear and blister

Didn't work for me. It did hurt my ear especially the ear i am sleeping on !

I’m not a particularly light sleeper but there are some sounds it seems my subconscious is always on alert for.  One of those sounds is doors opening or closing, which is a problem since our daughter gets up an average of three times a night.    The low profile and variety of tips have worked perfectly for masking the sound of her insanely frequent door usage and allow me to actually sleep through the night.

I’ve tried to sleep with ear buds before, but I spend most of the night on my side and I couldn’t find a way to lie my head down that didn’t result in discomfort from the ear bud being jammed into my ear canal and sleeping on my back made me snore. These are slimmer than any ear buds I’ve seen and, while I can feel them in my ear when lying on my side, they aren’t pressed painfully into the ear canal.  And they stay in place through multiple changes of sleeping position.  My favorite part is the ability to play nature sounds rather than music.  Not that you can’t listen to music, because you can if you Bluetooth to your phone, but the music I played in my previous ear bud sleeping attempts would sometimes change volume from one song to the next, which would wake me.   These have a variety of sounds like rainfall or forest stream, that stay at a constant volume for the entire time they are playing.   The only downside I’ve found is with the operational controls.  You use a variety of taps to play, pause, change volume, etc. and the combination of my ear shape, the low profile of the ear buds, and my chubby fingers, make it a bit challenging to use the right gesture on my first attempt.  Fortunately, there’s an app that can control those things if I need it.  The app also has an alarm feature so you can wake up without disturbing anyone you may be sharing a bed with.    I definitely recommend these to anyone who currently uses ear plugs to sleep or as an alternative to regular ear buds for those who listen to music or podcasts to go to sleep.

They sinple dod not really work as advertised. We returned

I recently received the Soundcore Sleep A20 Earbuds, and I must say, they have revolutionized my sleep experience. As someone who often struggles with falling asleep due to ambient noise, these earbuds have been a game-changer. The noise-masking feature is incredible, providing soothing sounds that effectively block out disruptive noises, allowing me to drift off to sleep more easily. The earbuds are incredibly comfortable to wear, thanks to their lightweight and ergonomic design. I barely notice them in my ears, even when sleeping on my side. One of the standout features is the impressive battery life. With up to 10 hours of playback on a single charge and an additional 40 hours provided by the charging case, I never have to worry about running out of power in the middle of the night. The touch controls are intuitive and responsive, making it easy to adjust playback and volume without having to fumble with my phone. The sleep monitoring feature is a nice bonus, providing insights into my sleep patterns that I can review in the Soundcore app. Overall, the Soundcore Sleep A20 Earbuds have exceeded my expectations, and I would highly recommend them to anyone looking to improve their sleep quality. They have earned a well-deserved five-star rating from me.

The earbuds are extremely low-profile. I was impressed that they were actually flat enough to allow me to side sleep without feeling any pressure. I had to change the silicone ear wing one size down for a more comfortable fit, and I imagine getting a good fit and being able to side sleep is going to be dependent on a person’s anatomy, but I guess between the varying sizes of wings and tips, most people should be able get a decent fit. Anker also included a set of breathable tips, which I prefer. They do not block noise and they cause the earbuds to drop a lot of the lows, but if I’m going to have these things in my ears for many hours at a time every night, I want my ear canal to not be sealed off. The app has an impressive number of noise types that can be layered on top of each other. There’s the common static noises (white, pink, brown, etc.), but also various rain, campfire, stream, birds chirping, etc., so there’s a lot to try out. While the app is loaded with features, I found the UI somewhat clunky and not very intuitive. It needs work. These earbuds can also be used as regular Bluetooth earbuds, not just sleep earbuds, so I found it great for watching YouTube and Netflix before I switch to the sleep noise mode before nodding off. I did find a bug in the alarm handling. The alarm is supposed to turn off either by tapping twice or putting an earbud back into the charging case, but the double tap did not work. I hope a future firmware update fixes that issue.

If you live in a city or near a busy road, these earbuds are a great tool to help you get to sleep and stay asleep! We live near a busy road and get a lot of traffic noise at night sometimes. When it becomes bothersome, I used to use foam earplugs, which were a bit of trouble to roll up and get sealed correctly, often causing me to pay too much attention to putting them in and adjusting them that I would wind up laying in bed for quite a while waiting for sleep. These Soundcore A20 sleep buds pop in effortlessly and make a good seal with minimal fiddling. Most earbuds come with a small assortment of eartips that you can change to get a better fit. These buds have the eartips as well as the “wings”, both of which are very customizable and extremely comfortable when you get them right. I tried out about 5 combos before I found the perfect fit, it took a few nights to get it right and for them to stay in my ears. Now that I have them set up, they pop in very easily and have a great seal for noise blocking. There are eartips that do not do the noise blocking, and they would be great if you had to still be able to hear what’s going on while still having your music or show or ambient playing. I much prefer the sound isolation, but if I lived in a quieter place, I would probably like the open tips much more. One note, I’m a 6’3 guy, I’m used to big clothes and shoes and cars, etc. I tend to assume I’ll need the bigger sizes of pretty much everything, but the best and most comfortable fit I get with the buds is with the smallest wings and a medium eartip in the left and a small on the right. I guess I’m just saying to keep trying the different tips and wings and you’ll get a fit you like, it just takes patience :) The sound quality is dead perfect for audiobooks and podcasts. The sound stage is very close and intimate sounding without being harsh or intrusive. The buds volume can go extremely low while remaining clear and understandable. These buds can get really, really quiet while remaining easy to understand. I can’t imagine the sound quality being better suited to their intended use. Classical music is well rendered at super low volumes, with a pleasant timbre that isn’t grabbing attention as you’re trying to fall asleep. When you are using the buds for sleeping, you can set them via the app to stop your audio source when the buds have decided you’re asleep. You can set them to play ambient sounds when they switch the stream off, which is quite pleasant. You can load 4 different ambient sounds into the buds. When the buds switch the ambient mode, they save a lot of battery, and these have run all night without running out. Once you’ve loaded the sleep sounds into the buds, you don’t need your phone to use them, which is really cool. Now, the case… The matte finish on the case is pleasant to look at but is slippery to handle. I have to use two hands, so fiddling with this case when I’m trying to go to sleep, for me, is a bit more involvement than I’m used to. I’m just leaving the case open now with the charge cord on my nightstand, it works great. The one caveat to having the case plugged in by the bedstand is the case lights are surprisingly bright in a very dark room and the breathing effect of the lights while charging is a bit distracting for me, so I keep the case covered at night. Those lights on the outside of the case give your charge status and indications for pairing status. There is a button on the back of the case by the charge port that you can quickly and easily reset the phones just by holding the button. The integration of the case into the functionality of the buds is a good idea and I like that the lights are not on the buds at all, only in the case. I don’t have to worry about bright lights flashing out of my ears disturbing my wife. The buds snap into the case with firm magnets, I tried each of the “wings” and eartips in the case, they all fit well and do not obstruct charging, one more wonderful convenience. I do wonder about the longevity of the mechanism on the case, as I’ve only used them for 5 days and the lid does not have the same fit and tightness as it did out of the box. I have had plenty of Anker products before and they’re well built and durable, so I have no reason to think this is just “breaking in” and will not lead to any issues in the future. The app is very useful and easy to use. I think it would be great if the app walked you through a first time onboarding that lets you know how long it will take. There are sleep settings that are not obvious or even pointed out in the app (top right corner, moon icon after going to “Sleep Data”) where you calibrate the buds for your sleeping position as well as where you enable sleep data collection and set your sleep goal. I would be remiss if I did not include my complaining about the need to log in to Anker to keep sleep data, once again, nobody’s phone is so useless that it can’t store the sleep data locally, and once again, why do my headphones need to interact with the manufacturer? There is no benefit for the user, but I’m using data and some of my battery to report back to Anker… for what? There are two things missing from these buds. The first is Qi charging for the case, which would make them able to use the bedside multi charging stands instead of the charging cable. The second is that the sleep data does not get sent to the Apple Health app. Overall, these sleep buds are comfortable, effective, and worth the time and effort to get them just right. I would recommend these to anyone looking for sleep buds!

These earbuds are very thin and comfortable. I had no problem sleeping with them. They are very secure and comfortable in my ears, more so than the other earbuds that I own. The earbuds come with seven pairs of ear tips and three sizes of ear wings. These earbuds are so secure, lightweight, and comfortable that I do not worry about losing one. The battery life is very long. The case is also extremely nice, the lid slides open to reveal the earbuds which are magnetically attached to the case. The magnet is very strong, so the earbuds stay in place. The earbuds fit into slots which match the shape of the earbuds so there is no confusion as to which slot is used to hold which earbud. The soundcore application works well with the earbuds. The first time that I opened the application it paired with the earbuds and then did a firmware update. Once in the application you have the option to run in Bluetooth mode or Sleep mode. Bluetooth is just like every other earbud. The sleep mode will play soothing sounds for the period you set, either until you fall asleep or all night. The sleep mode sounds are downloadable via Bluetooth, there are several to choose from. You can have four different sounds in your library at a time. By having the sleep sounds downloaded to the earbuds, you extend the battery life from 14 hours to 80 hours.

When I found out that Soundcore was coming out with an updated version of their Sleep Earbuds I was ecstatic! I have been using the A10 version since they came out and despite them being designed for sleep, they have been my go to headphones for all situations since I got them. For the past week I have been putting the A20 to the test and I am just as happy with them as I have been with the A10. Soundcore has these Sleep Earbuds absolutely dialled in, and they exceed my expectations in just about every category. As far as sound quality, I'd consider myself an audiophile and I have zero complaints about these. They have the perfect balance of base, clarity, treble, etc, and I did not have to make any adjustments out of the box via the Soundcore app. Where I think these earbuds excel the most is their comfort. They are so comfortable and so ergonomic, I believe that's what makes them my go to headphones. For sleep they are amazing, you really do not feel them at all when laying on your side. The A10 version has saved me several times on vacations where I could not get peaceful sleep without earbuds and I know these A20s will do the same as they are somehow even more comfortable than the A10. Not only are these great for sleep though, I have also been using them while cutting the lawn, sitting at my desk at work, at the gym, and just walking around the house. Since they are so small, light, and have a low profile they are perfect for anything. I have never had one get loose or fall out while working out or bouncing around on the riding lawn mower. I also feel pretty inconspicuous wearing these at work since they do not stick out from the side of my head at all. I can wear them for my whole 8-10 hour shift and no one even notices them in, and they are comfortable enough to leave in that long as well, they are in right now and I hardly feel them. The only thing that comes with the small size is a shorter battery life. I have found that I cannot get a full 8 or even 10 hours out of the earbuds before they start alerting me of a low battery. Fortunately they charge pretty quick when you pop them back into their case. But honestly that is my only minor complaint I have about these earbuds is the lack luster battery life, but I do find the tradeoff of battery life for the low profile size to be worth it. I really cannot recommend Soundcores sleep earbuds enough, I have quite a few options of earbuds to pick from but my go to is always these.