Ive only receive 1 out of 4 packages so far and the mattress expanded very quickly and it feels very comfortable like its cradling my body, measurements on the mattress seem to be accurate. I cant wait to receive the rest of my package to put it to the test.
Will update.
Update mattress got here had to let it expand for 48 hours however it only took about an hour if that I let it expand for 48 hours to be on the safe side. The adjustable base is amazing we are definitely enjoying it. The only downside is  the back of the remote pops off easily I had to put some clear tape on it to keep it from coming off.