Many people believe that a slightly open window promotes better sleep. The fresh air seems to be soothing and create an immediate sense of well-being.

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However, many health experts recommend closing the window at night. This habit can present risks that are often underestimated.

Closing the window doesn’t mean sacrificing good air quality. There are other solutions to ensure restful sleep while protecting your health.

Risks to health and sleep quality

Sleeping with the window open exposes you directly to temperature fluctuations. These sudden changes can disrupt your sleep cycle. Your body reacts to every cold draft and struggles to maintain a stable temperature. As a result, your sleep becomes lighter and less restorative.