1. Blankets Help Regulate Body Temperature

Humans are warm-blooded, which means we regulate our internal temperature automatically. But while we sleep, that regulation becomes less active. During deeper stages of sleep, the body struggles more to maintain its ideal temperature—especially when the surrounding environment fluctuates.

That’s where blankets come in. They help create thermal stability, acting as an insulating layer that helps keep your body temperature consistent throughout the night.

2. They’re a Key Part of Our Sleep Routine

Humans are also creatures of habit. From childhood, most of us have associated bedtime with tucking ourselves in under a blanket. Over the years, this routine has become deeply ingrained in our psyche.

So even if it’s not about temperature or fear, using a blanket sends a powerful psychological cue to