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5 Surprising Ways Cold Weather Affects Your Sleep

July 09, 2019

Cold-weather snooze fest - it's a thing!

Winter has descended on the Southern Hemisphere, and you know what that means - whip out the warm blankets, snuggly pyjamas, hot chocolate and get ready to hit the snooze button because nap season is here! If you’ve noticed that you are more prone to sleeping in or tend to hit the hay a little earlier when the weather is frosty, you are not alone. Cold weather affects our need and ability to fall and remain asleep in surprising ways.


Low Temperatures Makes it Easier To Fall Asleep

Our circadian rhythm is tied to our body temperature, which fluctuates throughout the day, and is meant to be at its lowest when we head to bed at night. If a room is hot, it can interfere with this dip in temperature and make it harder to fall asleep. A cooler room, on the other hand, makes it easier. 

Breezes Are Bothersome

Sleeping in a draft (whether it comes from under a door, through the window or out of an air conditioner) causes your heart rate to spike, which leads to restless sleep, according to this study

Low Light = Longer Sleep Cycle

The earlier it gets dark, the earlier you're likely to feel sleepy. Low natural light is tied to the production of melatonin, a hormone that is directly responsible for stimulating sleepiness. 

Cold Means Harder Work for Your Body

A recent study found that even though colder weather is associated with deeper and more restful sleep, it also forces our bodies to work harder to achieve homeostasis. As such, our heart rates and blood pressure goes up in winter. 

You're Less Stressed (Naturally)

Cortisol is a hormone that is associated with stress and has an impact on our sleep mechanics when it's too high. According to a recent study, our cortisol levels are naturally lower in winter, which also makes it easier to fall and remain asleep. 

There you have it - five surprising ways in which cold weather affects your sleep. Keep an eye on the blog in the coming weeks and months as we share more fascinating insights into the science of sleep. In the meantime, feel free to reach out to a Bed King representative (or visit us in store!) if you would like to learn more about our range of comfort-graded mattresses and which one is best suited to your sleep-time requirements. 

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