Have you ever laid down and fell into a deep sleep that just made absolutely no sense Best mattress Ive owned. 61, 200lbs with reoccurring back issues and this bed leaves me pain free. It also sleeps cool which was a big selling point for me. Expanded fully within a couple hours. One point of note, this definitely isnt anything close to plush as the description reads (thank goodness for reviews). It starts off mediumfirm and settles to medium within a few days. No smells, good quality  well worth the price.