Naked sleeping can be categorized into full nudity and partial nudity—sleeping in underwear or completely unclothed. Increasingly, people are embracing this practice, captivated by its "charm."
@Laughing Till I Die: Sleeping naked feels like my skin merges with the sheets—utterly blissful.
@LoveCloud: Since I started sleeping naked, my sleep quality has improved—it's amazing.
@Ben: I usually sleep partially naked; going fully naked always feels unclean.
While opinions on "sleeping naked" vary, the ultimate question remains—is it beneficial or harmful?
I. Over Half Prefer Sleeping Naked
A U.S. survey reveals that 31% of Americans sleep fully clothed, 52% prefer sleeping "completely naked" or "partially naked," while the remaining 17% opt for wearing their birthday suits. But does sleeping naked truly offer benefits? To find answers, Men's Health consulted sleep expert Matthew Walker.Walker is the author of Why We Sleep and a professor of neuroscience at the University of California, Berkeley.
II. The Many Benefits of Sleeping Naked
Let's set aside preconceptions about "sleeping naked"—it actually offers numerous advantages.
1. Boosts Metabolism
Research cited by Men's Health reveals that men sleeping in cooler rooms produce more brown fat than those in warmer rooms. This healthy fat burns calories and generates more body heat. Sleeping naked lowers body temperature, achieving the same effect.
Beyond physical cooling, sleeping naked increases skin exposure to air, boosting blood circulation and aiding relaxation and fatigue relief.
2. Potential Improvement in Relationships
Direct skin-to-skin contact between partners stimulates oxytocin release, enhancing intimacy. Additionally, sleeping naked lowers heart rate and skin cortisol levels, helping reduce blood pressure, relieve stress, and alleviate negative emotions—thereby strengthening the bond between partners.
3. Enhanced Fertility
A study found that men who sleep naked or in boxer briefs have fewer DNA fragments in their sperm compared to those who sleep fully clothed, indicating higher sperm quality. Researchers speculate this may be linked to lower body temperature, as heat suppresses sperm production and increases sperm damage.
4. Reduces Infection Risk
Bacteria thrive in warm, moist environments. Dr. Brian Steksner, a urologist in New Jersey, notes that wearing underwear creates such conditions in intimate areas, increasing susceptibility to bacterial infections.
5. Better Sleep Quality
A study published in the journal Brain indicates that maintaining bedroom temperatures between 15.5°C and 20°C helps lower body temperature, facilitating easier sleep onset. However, wearing clothing during this process impedes the cooling process, potentially leading to difficulty falling asleep or even insomnia.
A study in Science Advances also indicates that rising temperatures can degrade sleep quality. Furthermore, sleeping naked allows the body to relax without clothing constraints, leading to better sleep quality.
III. Sleeping Wrong Can Be Harmful
While sleeping naked has benefits, it's important to note that it isn't suitable for all situations.
First, avoid sleeping naked if you have a contagious skin condition.
Skin comes into direct contact with bedding, where microorganisms, skin flakes, and hair can infect or irritate affected areas. This risk increases when sharing a bed, potentially transmitting the condition to your partner. For those undergoing treatment, sleeping naked may transfer ointments onto bedding, reducing treatment effectiveness and contaminating linens.
Additionally, avoid sleeping naked in these four scenarios:
1. When staying in hotels or inns.
2. When sharing dormitory accommodations.
3. If you have pets at home.
4. Individuals with allergies, women during menstruation, or those with urinary or genital infections should not sleep naked.
IV. Follow These 4 Steps for Safe Naked Sleeping
After understanding the benefits and contraindications of sleeping naked, the next question is: How exactly should you sleep this way?Sleeping naked isn't difficult—just follow these 5 steps!
· Change sheets and pillowcases weekly
To sleep naked, create a clean and hygienic sleep environment. Choose comfortable, soft, and breathable bedding. Wash and disinfect it regularly, ideally by sun-drying it.
· Always shower first
Thoroughly cleanse your skin before bed, especially the genital and anal areas. Dry yourself completely to stay fresh and dry. This ensures your body feels relaxed and comfortable against the bedding, promoting better sleep.
· Protect against insects
Summer brings more mosquitoes, and exposed skin is more vulnerable to bites. Take precautions to prevent insects from disrupting your sleep.
· Stay warm
Monitor room temperature and humidity. In summer, avoid direct exposure to air conditioning while sleeping naked. In winter, cover yourself well with blankets and keep warm clothes by the bedside to put on immediately upon waking, preventing colds.
Traditional beliefs often discourage sleeping naked, yet many who try it become hooked. If you're not among those with medical restrictions, I recommend giving it a try—here's to sweet dreams!