Zinus Spa Sensations Serenity 8" Memory Foam Mattress, King

I have purchased between 6-8 or more of these over the past 13 yrs for me, my youngest son, our spare room, my niece, my daughter and her hubby, and now my oldest son and his wife, plus replacements a couple of years ago for a few. It's a GREAT mattress. It always fully inflates nicely out of the box and feels great in the way of firmness and support. I can't say enough good things about this mattress. It keeps its shape over the years, doesn't sink in or even start to for several years and that is a very, very tiny bit so that it's not noticeable. I used to be well over 300 lbs and there wasn't a dip on my side. I'm 180 now and just feel sheer comfort and support with this mattress. It's like sleeping on a semi-firm cloud. Get them for your household. You won't regret it.