Optimal Bedroom Temperature for Sleep in Winter

The ideal room temperature for sleep is 21-23°C, which significantly enhances sleep efficiency and reduces frequent awakenings.

  • 21-23°C optimizes sleep quality by promoting deeper rest and efficiency
  • Above 24°C causes more awakenings and lighter sleep stages
ClaimScientific ObservationImpact MagnitudeSource
Bedroom temperature 21-23°C enhances sleep qualityHigher sleep efficiency and fewer disturbancesSignificant increaseJae D. Jo et al. (2024), Buildings
Temperatures >24°C increase awakeningsLighter sleep stages and disruptionsMore frequent awakeningsJae D. Jo et al. (2024), Buildings
21-23°C balances comfort in winterImproved thermoregulationBetter subjective qualityJae D. Jo et al. (2024), Buildings

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