Psychologists agree: If you sleep covered even in summer, it’s not just by habit, but for this reason

Sleeping habits vary enormously from person to person. While some people can barely tolerate the warmth of a thin sheet on a hot night, others struggle to fall asleep unless they are completely covered, even when temperatures are sweltering.

These differences are not only a matter of personal preference or physical comfort. Psychological and scientific factors also play a role. What may seem like a simple bedtime habit actually has a biological explanation linked to how the body and mind relax. According to experts, the sensation of being covered can activate the parasympathetic nervous system, which promotes relaxation and reduces the body’s state of alertness.

A 2011 study conducted by the Department of Anesthesiology at the University of California found that the pressure generated by blankets can help alleviate conditions such as chronic pain while also contributing to improved sleep quality.

Sleeping under a blanket in summer may have benefits

The use of blankets has also been associated with improvements in mental health conditions such as anxiety and depression in adults. In addition, researchers from Flinders University and the University of Adelaide published a study highlighting the ability of blankets to provide a sense of calm and encourage physical relaxation.

The feeling of gentle pressure appears to create a comforting effect for some people, helping them unwind regardless of the season. This may explain why many continue to sleep covered even when the weather is particularly warm.

However, there is no evidence that blankets provide the same benefits for everyone. Although they are often used by parents of children with Attention-Deficit/Hyperactivity Disorder (ADHD) or Autism Spectrum Disorder (ASD), scientific research has not conclusively demonstrated their effectiveness in these cases.

For some children, blankets can create a sense of comfort and security. For others, however, they may have the opposite effect, increasing anxiety and discomfort rather than reducing it. As a result, experts recommend assessing individual responses rather than assuming the practice will be universally beneficial.

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