I am really happy with our purchase!! We bought this for our daughter's bed, and was a bit nervous about buying this. We recently purcahsed a Tempurpedic bed for us, but could not justify the expense for a child's bed. I found this on overstock, and thought.... maybe it is pretty nice. If you look at the reviews for the other sizes for the Bodipedic 10" there is ALOT of very positive feedback. I would say that there is very slight smell upon opening, but nothing offensive. In 24 hours, the mattress took shape perfectly. We put this directly on our twin bed frame, and will probably put a piece of plywood down against the slates, just because they aren't as close together as I would prefer. The mattress is a little soft, but very confortable. I think if you are putting this mattress on a platform (like we did with our Tempurpedic) or a box spring, you won't have any problems or issues with proper support. I have to say... for the price this mattress is really impressive. Oh, also glad I got this mattress at 10". I was actually considering another brand, but at 8", but was worried how it would look and feel. Definitely go for 10" or greater... comfy! I've only had a short nap on this new mattress.. with my daughter... but I am planning to tell all my friends about how pleased I am. Also... can't beat the 2.95 shipping, and it came right to my door. Thanks, overstock!