SNBR

Sleep Number Corp

A maker of adjustable air mattresses that let each sleeper dial in a firmness setting on a scale of 1 to 100 — hence the name Sleep Number. Founded in 1987 by Bob and JoAnn Walker as Select Comfort, it grew out of a decade of garage experiments to build a spring-free bed with inflatable air chambers, renaming itself Sleep Number in 2017. A fun twist: each side of the bed inflates independently, so one partner can sleep soft while the other sleeps firm.