Comfortable, convenient, mattress in a box
This mattress was selected because getting a conventional mattress into my 3rd floor bedroom up small, 100+ year old stairways seemed too daunting a task and the measurements just didn't allow for it without some major inconvenience and contorting. The boxed packaging made my task a breeze. Within minutes the mattress was at about 75% to it's full height. I waited a night to sleep on it, even though the packaging said it can be slept on immediately. By the 2nd day the mattress was fully expanded and I've now been sleeping on it for over a week. It's a very comfortable mattress, but if you need a lot of support (I'm 6'3, 220 lbs) it may not provide quite enough support for you. I've found that it's just a little bit soft for my liking, and I'm waking up 1-2 times a night to change positions to get more comfortable. As far as mattresses in a box though, this is the best one that I've been on. If you need the convenience of the packaging, this Serta Hybrid 10 inch can't be beat. Overall I'd give it a A-/B+, and I'm very very picky about mattresses. If you like a semi-firm mattress, this is definitely for you. I'd describe it as firm, but not incredibly supportive.