The path to a good night's sleep! A sleep doctor explains the benefits of wearing socks while sleeping

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The benefits of wearing socks to bed: A sleep expert explains the science behind it

Have you ever had trouble falling asleep on a cold night because your feet are cold? As a self-help blogger, I, Jon, explore the impact of small, everyday habits on productivity and mental well-being. Today, I'd like to share an unexpected way to improve your sleep quality: wearing socks to bed. Dr. Michael Breus, an American sleep expert known as the "Sleep Doctor," recommends this habit. In an article published on mindbodygreen.com on September 20, 2023, Dr. Breus explains that wearing socks can help regulate your body temperature and help you fall asleep more easily. But does it really work? We've thoroughly investigated the pros and cons based on the latest research.

First, let me briefly explain why socks help you sleep. In order to fall asleep, the human body needs to lower its core body temperature (internal temperature). Warming your feet dilates blood vessels, making it easier for heat to be released from the body, resulting in a lower core body temperature. According to Dr. Breus, simply wearing socks can potentially reduce the time it takes to fall asleep by 7 to 10 minutes. A March 30, 2025, CNN report also presented similar research results, pointing out the possibility that wearing socks could lead to improved sleep. This prompted me to try them myself, and I found them surprisingly comfortable and waking up feeling refreshed.

Of course, they're not suitable for everyone. People whose feet tend to get sweaty or who don't like tight shoes should be cautious. So, let's take a closer look at the specific scientific evidence. We'll start with Dr. Breus's claims and then explain them with other reliable sources.

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Sleep Doctor claims: Socks help regulate body temperature

Dr. Michael Breus is an expert in sleep medicine and has written numerous books and articles. In an article on mindbodygreen.com (published September 20, 2023), he states, "Wearing socks when you go to bed is a simple hack to improve the quality of your sleep." The reason lies in the mechanism of body temperature. When we go to sleep, our core body temperature drops by about 1-2 degrees, making it easier to fall asleep. If our feet are cold, this process is hindered, so warming them with socks is effective.

According to Dr. Ito, warming your feet dilates peripheral blood vessels (small blood vessels in your hands and feet) and promotes blood circulation. This allows heat inside the body to be released through the skin surface, lowering your overall body temperature. In fact, some of his patients have reportedly improved their insomnia symptoms using this method. A similar theory was introduced in a February 1, 2025, Newsweek Japan article, highlighting wearing socks as a healthy sleep technique that "defies conventional wisdom."

Scientific evidence supporting this comes from a 2007 study conducted at the University of Basel in Switzerland, which found that participants who warmed their feet before bedtime took less time to fall asleep. More recently, a March 30, 2025, CNN report announced the results of a study from Seoul National University in South Korea, which suggests that wearing socks may help lower core body temperature and make it easier to fall asleep. Specifically, the average time it took for participants who wore socks to fall asleep was 15% shorter than the group who did not.

More Benefits: Improved Sleep and More

The main benefit of sleeping in socks is improved sleep quality. Because your core body temperature drops more smoothly, you'll experience more rapid eye movement sleep (REM sleep, the deep sleep stage in which you dream), leading to a deeper overall rest. An article published on nishikawa-nemrium.jp on January 31, 2023, introduced socks as an effective solution for those who can't sleep due to cold feet.

Furthermore, it can also be expected to improve sensitivity to cold (a symptom of cold hands and feet). Warming your feet improves blood flow and reduces fatigue when you wake up in the morning. Looking at posts on X (formerly Twitter), a user shared on October 9, 2025, that "I was able to sleep soundly after wearing socks," and there are voices recommending them to women who suffer from sensitivity to cold. However, these are personal opinions, so please take them as a reference only.

Another benefit is stress reduction. Good sleep supports mental well-being. Dr. Breus' article also mentions that a sock habit may increase your daily productivity. For example, getting good quality sleep can improve your concentration the next day, making it easier to work and form habits.

Faster time to fall asleep: Studies suggest a 7-15% improvement.
Relieves coldness: Warmth in the feet promotes blood flow.
Improved overall sleep cycle: You'll find it easier to get a deep sleep.
Supporting mental health: Rest reduces stress.

These benefits were also reported in a press release from Alphamale Co., Ltd. on April 10, 2025, which reported that a survey showed an improvement in 18% of sleep problems. If you can expect such effects just by wearing socks, it seems worth trying.

Be aware of the disadvantages: When it can have the opposite effect

However, there are also disadvantages. Some people find that socks cause their feet to become sweaty and uncomfortable. A January 26, 2024, Yahoo! News article pointed out that socks can hinder heat dissipation and cause chills due to sweat as risks of poor sleep quality. In a similar post by X on October 31, 2022, an expert warned that socks "hinder heat dissipation from the feet" and may worsen sensitivity to cold.

Additionally, tight socks can lead to poor circulation. An article in Panasonic UP LIFE published on February 12, 2025, introduced the opinion of an expert who recommends wearing socks as a "no-no" for getting a good night's sleep in winter. For people who sweat a lot, socks trap moisture and can actually make you feel colder.

In the latest research, a Chinese medicine expert in a September 12, 2025, post by X explains why socks are not recommended, saying, "Sleeping with your feet exposed helps regulate body temperature more easily." Since this varies greatly from person to person, choose the method that works best for you.

Practical Tips: How to incorporate it effectively

So how do you get started? Here are the steps for beginners. First, choose the material. Choose breathable materials like cotton or wool. We recommend loose socks that are not too tight.

Second, timing. Put them on 30 minutes before bed to warm your feet, then leave them on once you're in bed. Dr. Breus also suggests using them in conjunction with a hot water bottle. A December 19, 2023, official Tabio X post suggested leaving your feet uncovered for a deep sleep, but also offered tips on how to keep them warm.

How to choose socks: Choose breathable, loose-fitting socks.
Combined items: Can be substituted with leg warmers.
Trial period: Continue for one week and observe the results.
Note: If it gets too hot, remove it immediately.

Safety Note: This article is intended for general information purposes only and is not intended as medical advice. If you have severe symptoms of sleep disorders or sensitivity to cold, please consult a doctor. The effectiveness of this product varies depending on your individual constitution, so please try it without overdoing it.

Summary: Small habits for big changes

The habit of wearing socks before bed is a simple method backed by science. It improves the quality of your sleep by regulating your core body temperature, which in turn boosts your daily productivity and mental well-being. However, be sure to consider the drawbacks and incorporate it in a way that suits you. Recent research has also confirmed this possibility with data from 2025. Why not give it a try tonight?

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Get a good night's sleep starting from your feet! A sleep doctor explains the benefits of wearing socks while sleeping