Sleep Wrinkles vs. Expression Wrinkles: What Causes Them and What Actually Helps
Updated November 2026 · By the Beauty Pillow team
Quick answer: Sleep wrinkles are lines caused by your face being compressed, stretched and pulled against the pillow when you sleep on your side or stomach. Expression wrinkles come from repeated muscle movement, such as smiling, frowning or squinting. The two have different causes, often run in different directions, and respond to different fixes. For sleep wrinkles, the most reliable approach is to reduce the pressure on your face while you sleep.
What are sleep wrinkles?
When you lie on your side or stomach, part of your face rests against the pillow for hours. The skin is compressed, and every time you move it is also stretched and dragged. A 2016 review in Aesthetic Surgery Journal by Anson, Kane and Lambros describes these as a separate type of line: sleep wrinkles are caused by mechanical distortion of the face against the sleep surface, not by the facial muscles that create expression lines.
Young, elastic skin springs back soon after waking, which is why pillow creases in your twenties are gone by breakfast. As skin loses elasticity, the same creases take longer to fade. The authors of the review suggest that this repeated nightly compression may contribute to lines becoming permanent over time.
How to tell sleep wrinkles from expression wrinkles
| Sleep wrinkles | Expression wrinkles | |
|---|---|---|
| Cause | The face pressed and pulled against the pillow | Repeated muscle movement (smiling, frowning, squinting) |
| Where they appear | Cheeks, forehead, around the eyes and mouth on the side you sleep on; also the chest | Forehead lines, frown lines between the brows, crow's feet, smile lines |
| Direction | Often diagonal or across the direction of expression lines | Follow the direction in which the muscles move |
| One side or both? | Often deeper on your preferred sleeping side | Usually similar on both sides |
| What helps | Less pressure and friction on the face during sleep | Treatments aimed at facial muscles, skincare and sun protection |
A simple self-check: look at your face right after waking up. Lines that appear on one side, match the side you sleep on and fade during the morning are compression lines. Treatments aimed at facial muscles, such as neuromodulator injections, target expression lines; they are not designed for lines caused by compression.
What actually helps with sleep wrinkles?
1. Sleep on your back when you can
Back sleeping keeps your face off the pillow entirely. The catch is that most people change position many times a night, so it is hard to stay on your back until morning.
2. Use a pillow that keeps pressure off your face
A contoured pillow designed for side sleepers can reduce how much of your face touches the surface. Look for recesses or cut-outs where the cheek rests, a cradle that limits rolling, and neck support that keeps your head aligned. Our side sleeper pillow checklist covers what to look for.
3. Reduce friction with a smooth pillowcase
Silk and other smooth fabrics let the skin glide instead of tugging. A pillowcase reduces friction, but it does not reduce compression on its own: your face still sinks into the pillow. See our silk vs. Tencel vs. cotton comparison.
4. Keep your skin hydrated and protected
Well-moisturized skin tends to recover from creasing more easily, and daily sun protection remains the most important habit for slowing visible skin aging overall.
How the Beauty Pillow is designed for sleep wrinkles
The Beauty Pillow is a contoured memory foam pillow for back and side sleepers who wake up with creases on the face. It has six zones: a head cradle that limits movement, side cut-outs that reduce pressure on the face, a slight elevation, and dedicated areas for back and side sleeping.
- Size: 35 × 54 cm (13.8 × 21.3 in)
- Neck support: 10 cm (3.9 in) high in the back-sleeping area, rising to 12 cm (4.7 in) at the sides
- Materials: visco memory foam, with a Tencel Skin+ pillowcase included
- Trial and warranty: 14-night sleep trial and a 3-year limited warranty on the pillow
It is not a treatment and will not erase lines you already have. Its job is to reduce the nightly compression that creates sleep lines.
Frequently asked questions
Can sleep wrinkles go away?
Temporary pillow creases fade on their own within minutes to hours. Lines that have become permanent are much harder to reverse; reducing nightly compression helps keep them from deepening.
Which side do sleep wrinkles appear on?
Usually the side you sleep on most. If your lines are clearly deeper on one side, your sleep position is a likely contributor.
Does a silk pillowcase prevent sleep wrinkles?
It can reduce friction and tugging, but your face is still compressed against the pillow. For compression, the shape of the pillow and your sleep position matter more.
Do I have to sleep on my back?
No. Most people move during the night. A pillow that keeps pressure off the cheek when you turn onto your side is a practical middle ground.
Can side sleeping cause wrinkles on the chest too?
Yes. When you sleep on your side, the skin in the center of the chest can fold for hours. Read why chest wrinkles form and how to prevent them.
Sources
- Anson G, Kane MAC, Lambros V. Sleep Wrinkles: Facial Aging and Facial Distortion During Sleep. Aesthetic Surgery Journal. 2016;36(8):931–940.
This article is for general information and is not medical advice.
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