Mattress Reviews 2024 Sleep Number Mattress. Sleep number offers a handful of bed options to their potential customers, depending on specific wants, needs, and preferences. Our experts tested both to find out.

The sleep number c2 is a 9.5” adjustable mattress made of foam, a quilted cover, and an adjustable rubber bladder. Perfect for couples (especially ones who don’t agree on firmness), sleep number mattresses are filled with adjustable air chambers so each side of the bed can be customized.