Should Men Sleep With or Without Underwear?

Short answer: Men do not need to avoid underwear at night. Sleeping without underwear can feel more comfortable because there is less fabric against the skin and potentially less trapped heat and moisture. Men who prefer wearing underwear should focus on a relaxed fit, freedom of movement and comfortable fabric.

Whether it is better to sleep with or without underwear therefore depends mainly on personal comfort, sleeping temperature and fit.

Is it healthy to sleep in underwear, or is sleeping without it better?

For healthy men, there is generally no reason to avoid wearing underwear at night. What matters is that it fits comfortably, does not dig into the skin and does not trap excessive heat or moisture.

Without underwear, there is less fabric directly against the skin, which may allow more airflow and removes any extra pressure from a waistband or leg openings. That does not automatically mean sleeping without underwear is healthier for every man. Loose, comfortable underwear can also provide a pleasant sleeping environment.

If you feel better without underwear, there is no need to wear it. If you prefer wearing it, a few factors are worth considering.

The real question is not simply “underwear or no underwear?” but whether you can sleep comfortably, stay reasonably dry and avoid unwanted pressure.

What type of underwear is best for sleeping?

If you like wearing underwear to bed, focus on three things:

1. A relaxed fit

Underwear should not dig into your thighs or waistband area when you lie down or turn over. A looser cut gives you more room than a very close-fitting style.

2. Comfortable fabric

Cotton is widely used for sleepwear and underwear because it feels soft and natural against the skin and can absorb moisture.

Synthetic fabrics are not automatically unsuitable. Some performance materials dry faster, for example. What matters is whether the fabric feels comfortable for several hours without becoming too warm.

3. The right size

Sizing up does not automatically make underwear more comfortable. Oversized underwear can bunch up, while a size that is too small may create pressure. Choose your size using your measurements and the brand’s size guide.

Which boxer shorts are comfortable for sleeping?

For men who would rather not sleep without underwear, loose boxer shorts can be a comfortable option. Their biggest advantage is the cut: the legs have more space, and the fabric does not fit tightly against the entire body.

Cotton Majesty’s 100% cotton loose boxer shorts combine a roomy fit with pure cotton, making them a practical choice for men who want to avoid unnecessary tightness at night. If you are deciding between loose and fitted styles, see our guide Loose Boxer Shorts or Fitted Boxers: Which Are More Comfortable?.

Are there drawbacks to wearing tight underwear at night?

Underwear that is too tight can be uncomfortable, especially if it creates pressure or traps heat. Researchers have also studied the relationship between tight underwear and male fertility. Higher temperatures around the testicles can affect sperm quality. However, it has not been clearly established that simply switching to looser underwear improves male fertility.

Is it better to sleep with or without a T-shirt?

There is no universal answer here either. If you sweat easily or feel too warm under your duvet, sleeping without a T-shirt or in a thin, loose top may be more comfortable. If you tend to get cold, a lightweight T-shirt or undershirt may help. The important thing is to match your sleepwear to the room temperature and how warm you feel.

So, should men sleep with or without underwear?

For most men, the choice is mainly about personal sleep comfort. A general health advantage of one option over the other has not been clearly demonstrated. If you sleep well and feel comfortable, there is no reason to change your routine.

Frequently asked questions about sleeping with or without underwear

What underwear works best if you sweat a lot at night?

If you sweat heavily at night, underwear made from breathable, moisture-managing materials that dry relatively quickly may feel more comfortable.

Should you wear different underwear for sleeping in summer and winter?

Yes. You can adjust your sleepwear to the season. In summer, lightweight, loose styles or sleeping without underwear may feel better. In winter, an extra layer can help if you tend to get cold.

How often should you change your sheets if you sleep without underwear?

As a general guide, changing bedding about once a week can be reasonable. If you sleep without underwear or sweat heavily, you may prefer changing it more often. The right frequency depends on perspiration, skin contact and how the bedding is used.

How does bedroom temperature affect what you wear to sleep?

Bedroom temperature directly affects comfort. Body temperature naturally drops during sleep, so many people prefer a slightly cooler room. Around 16–20°C is often described as a comfortable range. In a warm bedroom, lighter clothing or fewer layers may feel better; in a cooler room, an extra layer may help. Your personal temperature preference still matters most.