Warm Steam Inhalation before Bedtime Improved Sleep Quality in Adult Men

<div>Hypnogram (upper) and delta power (lower) profiles from a representative participant. (a) Sham condition. (b) Steam-inhalation condition. W, wake; REM: rapid eye movement; N1: non-REM sleep stage N1; N2: non-REM sleep stage N2; N3: non-REM sleep stage N3.</div>

Evidence-Based Complementary and Alternative Medicine

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Figure 2

Figure 2: Warm Steam Inhalation before Bedtime Improved Sleep Quality in Adult Men 