First time purchase from Wayfair and a new Memory foam mattress..after reading all reviews, decided to try this mattress. First comment- 1- arrived in great shape, unrolled and immediately starting to fill up...from start to finish, it took less than 30 minutes to be fully inflated..2- NO SMELL 3 perfect fit on the platform. I bought the mattress cover and sheet set also- perfect fit.The only smell was from opening the plastic package,which completely disappeared. 4 Very firm mattress, bounces back immediately when you get off of it. Very very comfortable- like a marshmallow! I read reviews because most of the time ,fake reviews are left, so Im leaving my own. I love this mattress! For my short legs, it is pretty high to get into but once you sink into your spot, you don’t want to move. My friend has one of those sleep number beds and to me, this is as good as that one but much less costly. I am definitely glad I took the chance. No more stiff backs.!