So, I just bought this mattress for a roommate who is coming to live with me tomorrow for a few months. The mattress arrived 3 days ago, so I had to try it out myself. I'm not going to lie, I was skeptical at first when I went to lay down because it felt soft and I'm a firm bed person! However, when I sat up in it and was propped up by my back rest pillow, I quickly fell into this deep sleep sitting up while I was watching TV. I woke up at 4:00 AM and was extremely surprised to see the lights and TV on. I never fall asleep sitting up. I just felt so comfortable and so tired that I fell asleep where I was. So, after I woke up, I put my back rest pillow on the floor and put my head on the pillow and fell back into this extremely deep comfortable sleep and did not get up once to go to the bathroom! That is very rare for me to do that. The mattress molds to your body, doesn't smother you, is cool and feels soft, yet it's firm! (JUST RIGHT)! It feels so right that I don't want to get out of bed in the mornings. I just want to keep hitting snooze! Hahaha! Most importantly, I am 46 years old and have lower back problems, especially when I get up in the morning. Well, it must have been my old mattress because I easily got up from this new mattress (due to the way they make the outside rim of the mattress) and right onto my feet and had absolutely NO back pain! I felt refreshed and felt like I had a great nights rest. I am truly amazed! I have been sleeping in it for the past 3 nights now and I have to give it up tomorrow night:( I was so bummed about having to give it up, that I had to order a Queen size "Member's Mark Hotel Premier Collection 12" Hybrid Mattress" for my bed! Haha! I am super excited about it and I am super excited for my new roommate to try it out and see what she thinks about the mattress;) It is a great quality mattress and you can't beat the price for that kind of quality! 5 STARS!! Worth every penny!