WHITE NOISE This contains all frequencies in equal measure that sound like a heavy waterfall or high fan to help get a nice, solid sleep. PINK NOISE Pink noise, like ocean waves or steady rain ...

Loud sounds during sleep ... increase time spent in deep sleep and improve memory. Pink noise is a mix of high and low frequencies, like the sound of failing rain or gentle ocean waves, making ...

rain, or ocean waves, sound machines can help drown out distracting noises and create a peaceful environment for sleep or relaxation. In this roundup, we’ve gathered the best sound machines on ...