Pink Noise — 2 Hours
pink noiseの2 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 2 hours
Pink Noise for 2 hours is ideal for deep work session, extended study block, evening wind down. Two hours covers a standard deep work block - long enough to reach and sustain flow state, short enough to prevent the cognitive fatigue that accumulates in longer sessions.
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
2 Hours — 使い方
Two hours covers a standard deep work block - long enough to reach and sustain flow state, short enough to prevent the cognitive fatigue that accumulates in longer sessions. Cal Newport's research on deep work suggests that most knowledge workers can sustain 2-4 hours of truly focused work per day. A 2-hour session with this sound is a single deep work block. Plan a 15-20 minute break afterward.
Pink Noise — すべての長さ
Pink Noiseのバリエーション
2 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?
Two hours covers a standard deep work block - long enough to reach and sustain flow state, short enough to prevent the cognitive fatigue that accumulates in longer sessions. Cal Newport's research on deep work suggests that most knowledge workers can sustain 2-4 hours of truly focused work per day. A 2-hour session with this sound is a single deep work block. Plan a 15-20 minute break afterward.