Sleep Number Beds

Honestly it's my first time to come across this sleep number bed. At first I was like...what? I really didn't have any idea what it was. Beds have numbers now? Haha, why am I ignorant at times? Anyways, now that I know about it, it makes me want to have one. Not that I am not comfortable with the bed that we have at home, I just want to try and experience what other people are saying about how comfortable it is to lie down and sleep on a sleep number bed.