What a horrible and expensive mistake this was. $3000 on the whole set. Felt great for a few months and then the pain started. At first the bed sagged a little where we lay. A few months later and we noticed the bed sagged terribly. Probably 9 inches or so - and this on a firm mattress. Simmons will not cover because when we are not on the mattress the depression is only 1.35". Who cares what the depression is when not in use? Poor design and extremely poor customer care. Do a search and you'll see the same story for all the other "top of the line" Simmons Black label beds. Simmons went into and back out of bankruptcy. No wonder!!!