 Quality sleep is essential. That's why the Sleep Number smart bed is designed for your ever-evolving sleep needs. So you choose what's right for you. It's not one of those where you have to adapt to the mattress. The mattress really adapts to you. Sleep Number. My Sleep Number setting is 75. You can adjust it on each side so it's two beds in one. Perfect bed for couples. Sleep Number smart beds automatically respond and adjust to your movements so you stay sleeping comfortably all night long.