COOL GEL10 Inch King Mattress Memory Foam Medium Firm, King Size Memory Foam Mattress Cooling, Made in The USA, 10" Depth with Pressure Relief, CertiPUR-US Certified No Fiberglass, CoolGel Bed

Starting this review off with 5 stars. Mattress was delivered a couple of days behind schedule, but arrived sooner than the new delayed shipment date. Was able to move to box into my house by myself, but I'm stronger than the average Jane. Once getting it in the house, got it out of the packaging pretty easily and set it on my dining room table to fully expand and give us time to put together our new platform frame. It fully expanded to 12 inches high (as of this morning) and we will be sleeping on it tonight. The pillows seem like they'll be a great addition. I will update along the way.*Next Day update*My old mattress was very old and uncomfortable. Laying down on this mattress was completely different, and it did take me a bit to get used to it. Since it is cooling, my brain seemed to think I was sweating, but quickly figured out that I wasn't. I woke up with no back pain and a good night's sleep. My husband, who normally sleeps horribly, said he slept "Great!"

This is one of the most comfortable mattress I have ever slept on for the price they knocked it out the ball field. No smell whatsoever like I see on most the reviews of mattresses like this. It didn’t take a couple days to spread out it did it instantly. It is so cooling. I have not sweated at all, and I am going through perimenopause. I don’t know how long it’s gonna last because of the price but if I get a year out of it, it’s well worth it. I had a pillow top before and I was sinking in and everything hurt when I woke up now I have support it’s soft and comfortable, but yet support you my hips don’t hurt where they are seeking down so far into my old mattress . I can’t explain how much me and my husband love this matches. We just can’t wait till we can spend a whole day in it. Make sure you don’t wanna get out of bed. That’s how comfortable it is.

When this mattress arrived in a box smaller than my laundry hamper, I'll admit I was doubtful. But after sleeping on it for three weeks, I'm officially a memory foam believer! The COOL GEL technology actually works - no more waking up sweaty like I did with my old spring mattress.What shocked me most:✔ Comes to life FAST - went from compact roll to full queen size in under 4 hours✔ Perfect medium-firm feel - soft enough for side sleeping but supports my bad back✔ Zero motion transfer - my partner can do gymnastics and I don't feel a thing✔ CertiPUR-US certified - no weird chemical smells after 24 hours

This is the second memory foam mattress I've purchased. I loved my first memory foam mattress (different brand), but I was forced to leave it behind when I moved 1800 miles away. I was using a hybrid memory foam mattress after the move, but I suddenly began waking up with back pain & knew I wanted to get another full memory foam mattress.I couldn't find the same memory foam mattress I previously purchased, so I took a chance on this one. I allowed this mattress to expand for about 48 hours to reach it's full size. Thankfully there was no harsh chemical smell after opening. The first thing I noticed is this memory foam mattress is much firmer than my first one, and I was a little worried I wouldn't like it.However, after sleeping on this mattress for a few weeks now, I am happy to say that I stopped waking up with back pain. I don't find this mattress quite as comfortable as my previous mattress due to how firm this one is, but it doesn't seem to interfere with my ability to sleep. I also noticed that I do sleep slightly warmer on this mattress, so I wouldn't recommend it to people who tend to be hot sleepers.The biggest plus is that I no longer wake up with back pain, so this mattress must be very supportive. It would be a huge pain to return a mattress like this, so I am going to keep it. Because of how firm it is, I will probably try a different brand memory foam mattress the next time I need one, unless I find a mattress topper that helps to make this one slightly softer.