Sleep number beds are the beds that have air in them to make them as hard or as soft as you like your bed to be, they also have two seperate sides so each person who sleeps on the bed and may have different sleep needs can sleep in the same bed together with two completely different firmness settings.  I sleep very well and some nights I want my bed softer or firmer depending on the days activities etc.

I would recommend this bed to anyone who doesnt seem to sleep well, has a bad back or any other issues with pain or just not being able to fall asleep.