I read all the reviews on many memory foam mattresses and decided to buy this one . I am so glad i did! It had no odor like some reviews said and after only 4 hours unwrapped was full size and ready to sleep on. It really is very comfortable. I was worried about it being hot because I like to be cool at night and its not. I have been away twice since i got my new mattress and it has spoiled me from sleeping on any other mattress.