Putting a hand under the pillow while sleeping is a common habit for several reasons.
1. Comfort.
For many people, sleeping with a hand under the pillow feels comfortable. It can provide a sense of security and support, especially for the head and neck.
2. Temperature regulation.
By placing a hand under the pillow, some people might find it helps regulate their body temperature. The hand acts as a barrier, preventing heat loss or providing a cooling effect, depending on the individual’s needs.
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3. Pressure relief.
Placing the hand under the pillow can distribute pressure more evenly, reducing strain on the neck and shoulders. This can be particularly beneficial for those who sleep on their side or have neck or shoulder pain.
4. Habit or preference.
Some people develop the habit of sleeping with a hand under the pillow from childhood and continue to find it comforting as they grow older. It can become a preferred sleeping position over time.
5. Stability.
Sleeping with a hand under the pillow can help keep the pillow in place, preventing it from shifting or moving around during the night.