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SOUNDSCAPE · NOISE

Pink Noise

Pink noise is equal energy per octave — roughly matching the frequency distribution of natural sounds like rain and wind. A small but suggestive 2017 Northwestern study found pink noise played during slow-wave sleep boosted memory consolidation in older adults. Better-tolerated than white noise for long sessions.

Updated April 2026·4 min read

What you're listening to

A warmer, softer version of white noise. The high frequencies are rolled off, which makes pink noise closer to what your ear naturally hears in rain, wind, or distant surf. Less tinny, easier to fall asleep to, easier to leave on for hours.

Why it works

Pink noise mirrors the '1/f' spectrum of most natural environmental sounds, which is why it feels more 'natural' than white noise. The Papalambros et al. (2017) study at Northwestern found that pink-noise bursts timed to slow-wave EEG phases improved overnight memory consolidation in older adults — a small trial, but the most direct evidence yet that acoustic stimulation can shape sleep architecture.

Best for

  • long-duration sleep masking
  • memory-consolidation sleep
  • reading and focus
  • masking traffic noise

One caveat

Pink noise does not equal rain or ocean audio — the natural tracks add spectral variation and micro-events that pure pink noise lacks. For sleep, most listeners prefer rain or ocean over pure pink.

Try it in the Loam app

Pink Noise is included in Loam's soundscape library, with loop-seamless playback, an animated visualizer, and the option to layer up to five soundscapes simultaneously. Download Loam to listen.

Related soundscapes

Browse the full soundscape library, or try: White Noise, Brown Noise, Green Noise.

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