 That's why Sleep Number smart beds are designed for your ever-evolving sleep needs. You can choose what's right for you, whatever you like. Need a bed that's firmer or softer on either side, helps you sleep comfortable with comfortable temperatures, quiets their snores? Sleep Number does just that. Sleep Number smart beds let you individualize your comfort so you sleep better. Adjustable firmness on each side. Only Sleep Number smart beds let you choose your ideal comfort and support. Your Sleep Number settings are – it's the best bed for couples. My Sleep Number setting is 45.