Serta - Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box - Multi

Name: Serta - Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box - Multi
Brand: Serta
SKU: 6475025
Rating: 4.8 (16 reviews)

Model: 500776578-1050

SKU: 6475025

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General
- Brand: Serta
- Model Number: 500776578-1050
- Product Name: Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box
- Color: Multi
Mattress Info
- Mattress Type: Foam core
- Foam Type: Memory foam, Gel
- Mattress Size: Queen
- Mattress Firmness: Medium to firm
Dimensions
- Product Height: 18.5 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 18.5 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Length: 23.625 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Product Weight: 56 pounds (The out of box weight of the item.)
- Maximum Weight Capacity: 1000 pounds (The maximum load that can be supported by the product.)
Certifications Listings & Approvals
- Fire Resistant: true
Warranty
- Warranty - Parts: 10 year
- Warranty - Labor: 10 year
Other
- UPC: 747935888081

The new Serta Sheer Slumber mattress delivers quality, convenient comfort to your front door in our smallest carton ever. We’ve combined cooling Serta Gel Memory Foam with our durable Serta Foam Core for a cool, supportive mattress that keeps you in dream-land all night long.

Serta Gel Memory Foam: This unique gel memory foam contours to the body for cradling comfort and allows airflow to keep you cool and comfortable throughout the night
Serta Foam Core: Our new and improved Serta Foam Core provides durable support for any sleep position. With consistent support from edge to edge, you'll be comfortably supported all night long.
The California Used Mattress Recovery Act: If you receive delivery of a new mattress to an address in California you may be eligible to schedule pickup of a used mattress. Customers can refer to the California Used Mattress Recovery Act for more information.

Whats Included

Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box

Disclaimers

The California Used Mattress Recovery Act: If you receive delivery of a new mattress to an address in California you may be eligible to schedule pickup of a used mattress. Customers can refer to the California Used Mattress Recovery Act for more information.
Note: Within the California Used Mattress Recovery Act mattress also includes a mattress set, a futon or a futon mattress.
Note: For more information on the California Used Mattress Recovery Act click on the following link (https://calrecycle.ca.gov/mattresses/law/prc/), or call 888-237-8289.

Q: What is the firmness level of this Serta mattress?

A: This Serta mattress is medium to firm.

Q: What is the weight capacity of this mattress?

A: The maximum weight capacity of this mattress is 1000 pounds.

Q: Is this mattress fire resistant?

A: Yes, this mattress is fire resistant.

Q: Does this mattress have a foam core?

A: Yes, the Serta Sheer Slumber mattress features a durable Serta Foam Core for support.

Q: What type of foam is used in the Serta Sheer Slumber mattress?

A: The Serta Sheer Slumber mattress uses gel memory foam for contouring comfort and airflow.

Q: Is it available in a long twin (38" X 78") or (38" X 80")?

A: Mine is a Queen.

Customers are saying

Customers frequently mention the comfort of the Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box. Many customers describe it as soft and comfortable, while still offering good support.

This summary was generated by AI based on customer reviews.

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Rated 5 out of 5 stars
Big comfort out of a little box!
My wife is the primary reviewer of this mattress since her comfort needs exceed mine. I can sleep on concrete and did in the military a few times. I’m mostly the editor on this review but we both unpacked it and set it up. Note: My wife and I sleep in separate rooms because years ago we had jobs with different work schedules and that worked out very well. So well, we have never reverted back. The mattress went on her bed – box springs. You will need a ridged supportive foundation to set the mattress on according to the setup-care card. Serta vacuum packed and rolled the mattress up and fit it into a 17 ½ tall by 18 ½ wide and 29 inches long box. They also included a little cutter tool (letter opener) to remove the plastic wrapper. Just read the setup and care card on how to remove it from the box. You remove the paper and plastic wrap it’s coiled up with, spread the mattress open, cut off and remove the plastic bag. Continue to spread it open so that can absorb air and expand to it’s designed shape. I’d say give it a day to fully expand and lose the slight odor it has. (See Photos) Wife says “As a side sleeper I feel like it offers me better support than the pillow top mattress I was using. It’s firmer than what I have been used to, and because of that obviously I don’t sink down into it as much. I think this is why it feels a little cooler too.” Serta says it cradles you and it does, but it doesn’t feel like a hammock, and that’s a good thing. After sleeping on it about a week, she was sure it had softened up some where she had been consistently laying on it and came up with an idea to test her theory. She got an unopened gallon jug of spring water (8.4 lbs.) and measured how deep it sank into the mattress in several different locations after sitting for five minutes. In unused sections of the mattress the jug sank approximately ¾ of an inch. In the used sections it sank as much as 1 ¼ inches. That’s a half an inch difference. So yeah, it softens up and conforms to you a bit. She said it’s more comfortable now than the first night she slept on it. I tried sleeping on it a couple of nights and I found it to be very comfortable. I’m a side sleeper too. Had she not liked it I would have taken it and been very happy with it. The build quality looks and feels good. It has a 10-year warranty. The zippered cover on the mattress is not washable, so spot clean when and where needed only. We both highly recommend the Serta Sheer Slumber 8” Med Firm Gel Memory-Foam Mattress-in-a-box.
Posted 3 years ago by MrLowNotes
Rated 5 out of 5 stars
Firmer, Very Comfortable - Spinal Fused Reviewer
I want to preface this review with the fact I have had Spinal Fusion on nearly my entire spine. I need a firm mattress with good support for my lower back in particular. I was surprised to find this Serta mattress very comfortable for my needs. I am coming from a mid-tier, “firm” pillowtop (Oxymoron) from another popular brand that starts with an S. Let’s just say I am not happy with that mattresses performance or quality. The Serta Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box features Serta’s improved Serta Foam Core which is supposed to provide durable support edge to edge for all sleeping positions. I have never tried a foam mattress, let alone a mattress in a box before so I was very interested in trying this product out. In the Box: - Mattress - Plastic Cutting Tool (To safely unwrap mattress) Setup: This mattress came tightly wrapped in several layers of cardboard wrapping paper as well as plastic wrap. Because of the small size, it is very easy to transport to its final location in your home. It is quite heavy so it might require two people. It took several minutes to cut the paper and plastic off the mattress. The supplied cutting tool works but not very well. Once you cut the final layer expect a POP! because the tension holding the mattress in the roll. Once you flatten it out you can cut open one final bag and slide the mattress out to let sit as it inflates to its final size. It took a good 3-4 hours to inflate to its full 8” size (started out about 6” immediately after opening). Serta claims you can use it right away while “inflating” but I let it sit over 8 hours before using it. Comfort: This mattress is advertised as a Medium Firm and I would say that is an accurate description. It is definitely firm the first few nights as it breaks in but after this period it softens just a tad. Personally, I need something firm and it has turned out very close to what I would want. The first two nights were rather hard (Could be just the feeling coming from another bed) but after sleeping on it for a week now, I like the firmness and density. Having never used a foam mattress before this is a totally new experience. I always shied away from foam because I didn’t think the feeling would lend well to my back but I was wrong. These mattresses offer more of the support I need for my entire back as they conform to your body quite well. I tend to sleep on my side but do sometimes lay on my back and both positions are comfortable. Overall comfort has been very good but not perfect for my lower back. I have been happy the improvement from my previous mattress. In terms of the temperature, this mattress seems to regulate it fairly well. Since it is winter I use a heated blanket but overall I am comfortable with a lower setting on the blanket. The one dislike I have so far is the fact this mattress is only 8” so even with a box spring and raised frame, you need to get up out of the bed instead of getting off like my last one. Currently this setup sits 23” from the floor where as my old mattress (on the same box spring) sat 28” from the floor. The 5” difference is very noticeable and could be a problem for older folks or people that need assistance getting up. The 5” lower height also changes how the room looks entirely. Sheets also need to be tucked under the mattress more since the mattress is quite slim. I could still use my old sheet with no issue. Overall: I am very pleased to find a mattress in a box does work for my needs. I have yet to see a substantial difference in sleep quality but adjusting to new mattresses takes time and I am heading in the right direction with overall sleep comfort. I would definitely recommend checking out this mattress if you are in the market for a new bed.
Posted 3 years ago by Justin
Rated 5 out of 5 stars
Surprisingly comfotable
Pefect in our new RV trailer. No aches or pain, slept very well on the first use. The Mrs. is satified too - got the medium/firm. Gives us support but contours to a side sleeper.
Posted 2 years ago by Mllo69690