So THAT’S Why You Sometimes Wake Up With Lines On Your Face

By helitra·November 4, 2026·5 min read

If you’ve ever woken up and noticed a bunch of lines or imprinted markings on your skin, especially your face and upper body, you may be surprised to learn your pillowcase or sheets may not be entirely to blame.

Those lines would actually be a subtle marker of your health.

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We spoke with sleep and medical experts who broke down why you might wake up with lines on your skin (often called “sleep wrinkles”) and what they could be telling you.

It could signal fluid shifts in your body.

Internally, certain health conditions can increase your likelihood of waking up with sleep wrinkles.

“Slight shifts in fluid overnight can lead to puffier skin upon waking, which can also contribute to more prominent lines,” explained Dr. Christopher Allen, a sleep science advisor at Aeroflow Sleep, a board-certified sleep medicine physician and a pediatric neurologist. Basically, it stretches your skin and deals with your skin’s elasticity (which we’ll dive into next).

Various conditions can contribute to overnight fluid shifts, doctors said, such as sleep apnea, heart failure, kidney disease, some forms of liver disease, chronic venous insufficiency and lymphedema. Allergies or sinus inflammation can contribute to puffier skin, or swelling, around your face and eyes.

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Water retention plays a key part in this equation. Dr. Scott Nass, a family medicine physician at SwiftCareMD with 20-plus years of experience in sleep health and other health concerns, noted that it can cause the lines to last longer.

Here’s what happens: Fluid retention — which can be caused by excessive salt, dehydration, not moving your body enough and more — can cause water to pool in the lower parts of your body (like the legs, ankles and feet) when you’re standing or sitting (again, because of gravity). When you lie down, the fluid can move to your upper body.

Allen agreed about fluid retention, noting that certain medical conditions, such as kidney, heart, thyroid or inflammatory conditions, can increase the risk of that retention.

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"Younger people's skin may recover from these lines faster, while with age, we lose collagen and elasticity, which could lead to these lines lingering longer," Allen explained. — “Younger people’s skin may recover from these lines faster, while with age, we lose collagen and elasticity, which could lead to these lines lingering longer,” Allen explained. JGI/Jamie Grill via Getty Images

Lines could signal dryness or reduced skin elasticity.

As you age, your skin becomes less elastic, meaning it’s less able to snap back after stretching. According to Nass, “dryness and decreased skin elasticity may also prolong how long these lines take to disappear.”

That can be especially common as we age. “Younger people’s skin may recover from these lines faster, while with age, we lose collagen and elasticity, which could lead to these lines lingering longer,” Allen explained.

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To increase elasticity in aging skin, a 2022 study in Dermatology Practical and Conceptual recommended collagen supplements. To treat dry skin, body butters are a solid option.

The sleeping position that could be most responsible:

Lying for a long time in a certain sleeping position is “the most common cause,” according to Allen. Essentially, lines appear where the sheets press against your face (or body) for an extended period.

Nass agreed: “Pressure lines and wrinkles you see when you wake up typically result from your pillow (or mattress), how your sheets fit, what you were wearing and/or sleeping in an unusual position most of the night,” he said. “When you sleep with your body pressed into one place for many hours, friction can create temporary creases in your skin, primarily on your face, upper torso and arms.”

For that reason, sleeping on your stomach is most likely to lead to skin wrinkles (along with sleeping on your side).

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Certain bedding can make it worse.

Besides your body and sleep position, your choice in sheets can also make a difference.

“Thicker, rougher bedding or textured pillowcases could contribute to more prominent lines than smoother fabrics,” Allen said.

If you’re worried about sleep wrinkles (for what it’s worth, they’re not a problem), opt for silk pillowcases and silk sheets. They reduce the likelihood of sleep wrinkles by reducing friction and localized pressure.

What sleep wrinkles tell you about your sleep:

Have you seen social media posts or heard people say that “sleep lines” mean you slept super well? Unfortunately, that’s a myth, or at best, a coincidence. The reasons above are the only ones, doctors say.

“Sleep lines indicate where pressure from a bedding item rested on your body during sleep,” Nass said. “They do not tell us about the quality of our sleep or what sleep stage we were in when those lines occurred. You can have poor-quality or interrupted sleep and still have lines.”

Signs of poor-quality sleep, also referred to as “junk sleep,” include not feeling well physically or mentally and wondering if you’ll be able to function during the day.

Allen agreed the lines indicate your sleeping position rather than your sleep quality, and that it’s not a major reason for concern. With that said, keep an eye on your symptoms.

“If [the lines] linger after you wake up, this is probably normal and nothing to be concerned about,” he said. “If you have persistent puffiness, pain or skin discoloration or marks that do not resolve, this could indicate something else, and you should talk to your clinician about it.”