睡眠研究

Study finds pink noise reduced REM sleep in lab trial; earplugs helped protect deep sleep from aircraft noise

2026年02月04日(水) AIによるレポート AIによって生成された画像 事実確認済み

A small sleep-lab study from the University of Pennsylvania reports that continuous “pink noise” played overnight reduced participants’ REM sleep, while earplugs helped blunt deep-sleep losses linked to intermittent aircraft noise. The findings add to a limited evidence base about the long-term effects of broadband “sleep sounds,” and the researchers urge caution—particularly for young children.