Pink Noise — 5 Hours
pink noiseの5 Hours — 広告なし、バッファリングなし。スリープタイマー付きで無料。
今すぐ聴く
YouTubeから厳選した長時間pink noise。クリックで再生 — ページを離れる必要はありません。
Pink Noise for 5 hours
Pink Noise for 5 hours is ideal for extended work shift, full study day, background coverage. Five hours covers an extended work shift or a full study day with breaks.
Pink noise loses about 3 decibels per octave as frequency increases — halfway between the brightness of white noise and the depth of brown noise. The result sounds like a gentle waterfall, steady rain, or wind through trees — natural, balanced, and warm. Pink noise has the strongest scientific evidence of any ambient sound. A Northwestern University study found it extends deep sleep (slow-wave sleep) by 25% and improves next-day memory recall, because its frequency profile matches the brain's own sleep oscillation patterns. A systematic review by Capezuti et al. (2022) found that 81.9% of pink noise studies showed positive sleep outcomes, compared to just 33% for white noise. For older adults, pink noise improved memory recall by 3x (Papalambros et al., 2017). Important caveat: Basner et al. (2025, UPenn) found continuous pink noise at 50 dB reduces REM sleep by 18–19 minutes — use a sleep timer.
最適な用途
5 Hours — 使い方
Five hours covers an extended work shift or a full study day with breaks. This is practical coverage for a morning-to-lunch or afternoon-to-evening block. The sound loops seamlessly, so there's no jarring restart. At this duration, consider keeping volume lower (35-45 dB) - extended listening at higher volumes causes auditory fatigue even with pleasant sounds.
Pink Noise — すべての長さ
Pink Noiseのバリエーション
5 hoursの他のサウンド
Softlyを選ぶ理由
広告なし。永久に。
睡眠中の中断なし。午前3時の広告なし。ただ音だけ。
フェード付きスリープタイマー
音が眠りを誘い、グラデーションフェードがレム睡眠を邪魔しません。
オフラインモード
バッファリングなし。WiFi不要。ダウンロードしてどこでも聴けます。
もっと詳しく
よくある質問
What is pink noise?
Balanced noise that loses 3 dB per octave. Sounds like a gentle waterfall or steady rain. Has the strongest scientific evidence of any ambient sound for sleep.
Is pink noise good for sleep?
Yes — pink noise rates 5/5 for sleep on Softly. Pink noise loses about 3 decibels per octave as frequency increases — halfway between the brightness of white noise and the depth of brown noise. The result sounds like a gentle waterfall, steady rain, or wind through trees — natural, balanced, and warm.
How long should I listen to pink noise?
Five hours covers an extended work shift or a full study day with breaks. This is practical coverage for a morning-to-lunch or afternoon-to-evening block. The sound loops seamlessly, so there's no jarring restart. At this duration, consider keeping volume lower (35-45 dB) - extended listening at higher volumes causes auditory fatigue even with pleasant sounds.