Love my new bed!! Within 5 minutes it expanded to it's full size! No odor whatsoever. Quite firm at first...but if you get your 7 year old to jump on it ...it gets comfy pretty quick..lol!! Only con so far...don't spend the extra money for the cool sensations. It is just as hot as my regular memory foam. I see no difference whatsoever. The freight took forever!!! Upgrade your shipping if you need it quick. Took 3 weeks to reach me by regular UPS!! Oh, and yes, the mattress is as thick as the picture shows. We're using it without a box spring on our king-size platform bed with no problems.