Serta SleepToGo 12" Firm Gel Memory Foam Mattress

This bed was easy to set up if you already have your frame ready. I set it up at 8:30am and left it "bare", and then slept on it that evening at 11:30pm. I am a side sleeper and I like to be close to the edge. This mattress does not disappoint. It is firm to the edge and has held it's shape for a few weeks now. Also, this mattress seems a bit firm when you first sit on it, but as soon as you get into your spot the mattress gives just enough that you are super comfortable. The bed is not bouncy.

I was considering more expensive bed-in-box mattresses (all $1000 plus online), most were hybrids, based on YouTube reviews. I opted instead for this much lower-priced memory foam. For the low price, I thought, well, if it sucks, I won't have invested too much in it. To my surprise, this is a really good mattress. I thought I wanted something really firm because I am larger and had been sleeping on an unsupported, worn out coil mattress. I was worried this would be too soft. It's not. In fact, if anything, it might just be a touch too firm. That said, it is super comfortable. Keep in mind, there will be a little bit of "sink" into the spot you are sleeping in (it is memory foam), so if you move over out of the spot, you might feel the incline a little bit. But, so far, after a couple of weeks, the sunken spot doesn't remain day to day, i.e., it seems to re-firm after getting up for the day. The sink-in does not bother me that much, but I enjoy moving out of that spot, onto a firmer unsunken spot, which is also comfortable. I think it will help also to rotate the mattress fairly regularly. As for heat retention, I had a cotton mattress cover that breathed well, and there was no heat build up. I switched to a higher quality "waterproof" mattress cover, and I noticed more heat retention than before, so I may go back to the cotton one. Its not the mattress but the mattress cover I selected. In short, for the low price I paid on sale, this is a super-comfortable, not too soft, and apparently high quality queen mattress. I have it on a very firm, metal-slatted platform, which works great (no more box springs). Are there more comfortable, more expensive mattresses? Probably, but I don't know. But spending more than $400 or $500 on a mattress seems insane to me. For the price and comfort, I am very pleased with this one (and I am often very difficult to please with these types of things).