The reviews posted for this mattress were very helpful in making our decision for purchase.  We are satisfied with the purchase for our 9 year old son.  For an adult, this isn't as firm as we would like it for a foam mattress.  We have another foam mattress in a child's bedroom that is much more firm and comfortable for an adult.  This mattress does the job and came wrapped well, increased to the 8 inches within 24 hours, and did not have a smell.