I suffer from insomnia and the ONLY thing that helps me fall asleep aside from ear plugs is a memory foam mattress. Therefore, a mattress is VERY important to me. I purchased this mattress based on the reviews and a similar mattress I purchased from Great Offer Stock in the past which was no longer available. Well, as soon as I laid on this mattress I knew I picked a good one. It is definitely a firm memory foam mattress with minimal give so if you are looking a sinking in type memory foam which I was not, do not purchase this mattress. However, if you suffer from back pain, insomnia, or hate feeling coils and springs like me, then buy this! You won't be disappointed. It stays cool to the touch as well which is nice for me because I am always hot. It doesn't leave an odor, but remove the plastic it comes in from the room asap because the plastic will definitely have one. Happy Shopping!