Let me start this review by saying that the mattress replaced with this one with is also a Sealy. It also cost me around the same amount for a queen (roughly $700). That mattress has lasted 14 years, and honestly is still very comfortable to sleep on, not lumpy in the slightest or any coil issues. But heck yeah I wanted a new one, and boy did I score big with this Hybrid! It's so comfortable to sleep on, like a cloud, with a firm foundation. I was not expecting this mattress to come compressed and rolled up in a box.. so imagine my surprise when I come home to a long rectangular box behind my porch. The box was quite heavy and not very easy to get up 6 stairs and inside the door. But I managed, all by myself. So just be aware of that if you live alone, or simply with a child too young to help you lol. Once the compression wrapping was off it plumped up very quickly. It said to give it 48 hours to fully decompress, but come on, who's going to wait that long to sleep on their new bed?! It was opened around 9:30am and not slept on until approximately 9:30pm, so 12 hours. It felt completely fine to me and was very comfy. I will say that it had a funky smell, which the instructions said will go away in about 72hrs, and to let it "air out" for that amount of time... once again, who is going to do that?! If I have a new mattress I want to sleep on it ASAP. So I dealt with the smell for a few nights and poof, it was gone. I had honestly forgotten about it before I realized it went away. Definitely not a big deal, just thought I'd mention it! This mattress it also thicker than my previous one, with the added memory foam layer on top. I was a bit worried the fitted sheet wouldn't fit, but it was just fine, no issues at all. Also important to note, I have pretty sever back and neck pain, and though I wasn't expecting much, this mattress has definitely helped! I don't know how, because I didn't change my pillow, but my neck pain is almost non-existent now, after only a week of sleeping on this mattress! My back however is a different story, I have a lower spinal curve with pretty severe lower back pain, which is at its very worst in the mornings. I have noticed a difference in the amount of pain I have when getting out of bed, and in my ability to bend forward. That's a win for me! This mattress cannot solve my back issues, but it has most definitely helped. All in all I absolutely LOVE this mattress and will recommend it to anyone, especially those with neck and back pain!