I could not wait to setup the new Ghostbed we ordered. It is an awesome mattress. I would rate it a 4 and a half but cannot because that is not an option. the only issue we are having is it tends to cause me to sweat some at night. I have been using a thick plush bath towel for now but have not found a solution yet. the biggest thing is we don't use our sleep number bed any more, i got tired of replacing worn out components and re-arranging the internal components every month to keep it working correctly. The Sleep Number bed is the worst $$$$ we ever spent on a mattress.