More than one in three American adults, on average, get less than seven hours of sleep per night, according to a survey conducted by the Centers for Disease Control. But sleep problems, in general, are even more prevalent, says ResMed, a maker of sleep-apnea treatment solutions.

The S+ is part of a recent glut of sleep monitors—the natural evolution of the fitness tracker market. The Withings Aura, for example, uses color-changing light to influence the body’s level of melatonin production. It tracks sleep patterns through a motion-sensing pad between a mattress and bedding. If you are looking to get a new mattress make sure to check out the mattress sizes and find the right size for you. Other devices, such as the Basis Band and the Jawbone UP, monitor vitals through a watch or wristband. The SleepRate app requires a user to wear a heart rate monitor around his or her chest.

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