I have just recently set up my king ReST bed. Absolutely fantastic bed. Very easy to set up and takes sleeping to a new technological level. I have yet to experiment with all the modes but so far it is proving to be super comfy. I like a fairly firm bed and this definitely checks that box. My wife likes hers a little softer and since each side is individually controlled, that is very simple to achieve. The mattress is very stable and we can hardly notice each other in the bed, despite moving around. At this early stage, I have to say I am thrilled with this bed and I’m sure I will have many years of improved sleep. Also needing mention is the fantastic customer service at ReST.