Sleep experts say using a white noise machine can improve sleep. Here, editor-tested picks from Hatch, HoMedics, YogaSleep and more.

It has 10 fan speeds and 10 sound levels, meaning you can tailor both cooling and sound masking to your preferences. The airflow is noticeably strong (up to 380 cubic feet per minute (CFM) at speeds ...

Pink noise emphasizes lower frequencies — making it sound similar to steady rainfall or ocean waves. It’s often used for sleep.