This tiny bedside gadget has thousands of Amazon reviews and a surprisingly big fan base. See why some buyers call it a true sleep upgrade.

If you sleep through alarms, barking dogs, or a roommate’s late-night commotion, it’s usually not a motivation problem.

Abstract: The four stages (first heart sound (S1), systole, second heart sound (S2), and diastole) of heartbeat sounds recorded by contact seismocardiogram (SCG) reflect the health of the heart, but ...

Sleep frequencies are the latest sound-based sleep trend promising deeper, more restorative rest. Here's how they work ...

Pink noise is different. Instead of equal energy at each frequency, the energy halves with every doubling of frequency (so ...

Adjustable coils, not air chambers, deliver the exact firmness and targeted support you want. Programming enables “massage” and relaxation settings. Sensors track sleep data. Not flexible enough to ...

Sound machines and “sleep sounds” are often marketed as a cure for restless nights, but new research suggests they may ...

Sound machines promise better sleep, but new research suggests they may quietly steal your REM and deep sleep.

Share on Pinterest A new study shows that pink noise may lower the quality of sleep and disrupt the REM cycle. Image Credit: AleksandarGeorgiev/Getty Images A recent study suggests that pink noise, ...

It’s unclear why the pink noise disturbed the REM phase, although “constant auditory input” could inhibit brain processes responsible for sleep, Basner said. Pink noise did help participants sleep ...

Pink noise by itself, equivalent to "moderate rainfall," was linked to a loss of 19 minutes of REM sleep. And pink noise combined with aircraft noise led to "significantly shorter" time spent in deep ...