Why We Sleep More During Winter

Winter weather significantly influences our sleep patterns, often triggering longer nap times and a desire to stay bundled up under warm blankets.

As the temperature drops, many people find themselves more inclined to sleep, with some experiencing improved rest, while others struggle with disrupted sleep cycles, such as insomnia or restlessness.

According to Continental Hospitals, the cold season’s impact on sleep is considerable.

The human body is equipped with an internal thermostat, known as thermoregulation, which helps maintain the optimal body temperature for proper functioning.

During sleep, a person’s core body temperature naturally drops by about 1° to 2° Celsius, signaling the body that it’s time to rest. Cooler environments can aid in this process, making it easier to fall asleep.

However, extreme cold can overstimulate the body’s efforts to preserve warmth, leading to poor sleep quality.

In a chilly bedroom, one may experience discomfort, shivering, or frequent waking, disrupting deep sleep and making it harder to rest fully.

Additionally, winter nights bring extended periods of darkness, prompting the body to produce more melatonin—the hormone that regulates sleep.

While this helps us fall asleep faster, it can also throw off our internal clock, leading to daytime fatigue and an earlier onset of sleepiness at night.