It’s surprising how often we toss and turn at night, only to find comfort once a blanket covers us. Even on hot nights, many of us instinctively reach for a sheet. But why? Here are five reasons why sleeping with a blanket makes perfect sense.

1. They regulate body temperature.
As warm-blooded beings, we manage our internal temperature. But during deep sleep, our bodies lose some of that control. Blankets help us maintain a comfortable microclimate, keeping us warm without overheating.

2. They’re part of our routine.
From childhood, blankets have signaled bedtime. Covering ourselves triggers our brains to prepare for sleep, making them a key part of our nightly habits.

3. They reduce stress and anxiety.
Blankets may increase serotonin, a calming chemical in our brains. This can help ease stress and anxiety, allowing us to fall asleep more peacefully.

4. They help us sleep faster.
Blankets create a stable environment that prevents external temperature shifts from disrupting our rest, helping us drift off more quickly and sleep more soundly.

5. They provide comfort and security.
Blankets can ease lingering childhood fears of the dark by offering a sense of safety and protection, making us feel more at peace.