I paid alot of money so I guess I should have read the "fine print" regarding not returnable matress AND FRAMES, because I have Multiple Sclerosis and my side is comfortable at certain adjustment levels, but my husband's side hurts his back, which is why we purchased the split California King adjustable set, so that he can lie flat. I called to see if they would offer some type of gel mattress to put on top of his side of the bed, but they said NO not for free, but you can go to our website and purchase one. Yeah right,like I want to take a chance and spend more money on Crap. My suggestion is Don't by it. Go somewhere else!