Back to library

environment

A warmer room is always cozier for sleep

Grade C · LimitedReview pending

What people say

The warmer my bedroom is, the more deeply I will sleep.

Comes up 3/5 in community conversations

What the evidence says

Grade C · Limited

Thermoregulation is involved in sleep onset and maintenance, but the best room temperature varies by bedding, clothing, season, and person. There is no universal magic number.

Verdict: mixed

Research record

What this verdict is based on

Sources are linked for inspection. Study results are summarized for general information, not personal medical direction.

narrative review · participant total not stated

Effects of thermal environment on sleep and circadian rhythm

Journal of Physiological Anthropology · 2012

Open PubMed record DOI 10.1186/1880-6805-31-14