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Beauty Sleep Isn’t a Myth—Experts Reveal What Really Repairs Your Skin Overnight
Sofía Viera · 2026-05-15 · via E! Online (US) - Top Stories

The Skin-Recovery Secrets That Work While You SleepCourtesy of Augustinus Bader

Did you know there's a direct correlation between a good night's sleep and a good skin day? Beauty sleep isn't just a saying, it's a fact.

As a skincare-obsessed editor and a chronic sleep avoider, I was intrigued. Last week, E! attended an exclusive expert panel organized by Augustinus Bader all about this very topic to celebrate the launch of its newest skincare innovation, The Overnight Restorative Cream

The moderated conversation explored the connection between sleep, cellular renewal, and skin regeneration. The panel featured experts in the field, Dr. Amanda Kahn, a board-certified internist specializing in primary and preventive care and longevity specialist, and Dr. Rebecca Robbins, a Sleep Scientist and an Assistant Professor in Medicine in the Division of Sleep Medicine at Harvard Medical School. 

It also included Augustinus Bader CEO, Charles Rosier, alongside R&D Innovation and Formulation Director, Aimée Nottingham, to explain the science behind the new product.  

Keep reading to learn more insights from the panel, expert sleep recommendations, and to shop the best night creams and overnight masks to make your beauty sleep truly restful. 

What Role Does Sleep Play In Our Skincare & Wellness Routine?

Everyone knows sleep plays a major role in our wellness and health, but what many might not know is that it's also important for our skin.

According to the sleep experts on the panel, sleep is the number one factor for ensuring longevity for our skin. For them, the area of longevity—something that's been trending in the beauty market recently—should consist of 90% sleep. During good quality sleep and deep rest, our skin repairs itself and releases growth hormones. Cells regenerate, collagen production speeds up, and blood circulation increases. 

What Happens To Our Skin While We Sleep?

Our skin goes through a transformation while we sleep. There's an increase in cell turnover, meaning old skin cells are shed, and new cells come up to the surface to replace them. This regeneration at night makes it easier for those new cells to absorb products.

That means the best time for our skin to absorb products with powerful formulas is overnight. Technically, any product can be "overnight," given that most of us do our skincare routine right before bed. Still, there are products that are specifically formulated for nighttime, that keep the transformation our skin goes through during sleep in mind. 

Collagen production peaks during deep sleep. Collagen is the protein in our body that gives elasticity to our tissues. This increase only happens during deep sleep, the third Non-REM sleep stage, where "your heart rate and breathing rate slow down." This stage is where the body does most of its healing and repairing.

How Does Not Sleeping Enough Affect Our Skin?

Not getting sufficient sleep affects everything in our bodies, from our minds to our skin. When we don't get good quality sleep, we can see it on our faces in the morning. Fine lines, wrinkles, dryness, and redness are more noticeable

When the deep sleep stage is skipped entirely, there is no optimal increase in cell turnover and collagen production. That means we have a higher volume of dead skin cells on our skin, which leads to it looking drier and with more fine lines. It also means our products aren't absorbed properly into the skin. 

It's also important to highlight that, according to the panelists, the quantity of sleep does not equal quality. They made a point to emphasize that "good sleep" looks different for each person. Just because you slept eight hours, it doesn't mean you slept well for eight hours. 

What Should Be In Our Sleep Routine?

To ensure a better quality of sleep and deeper rest, it's important to establish a consistent wind-down routine before going to bed. Your skincare routine should play a role in that, alongside other relaxing activities.

The panel's experts recommend creating a ritual for yourself to condition your mind and body to get ready for sleep. Among their recommendations, they mention using products with relaxing scents, a cold room, magnesium, a warm bath, and not using your phone for an hour before sleep. 

There is no one perfect sleep routine, though. It depends on the person and what works best for them. They also recommended using products in your skincare routine that are formulated especially for what happens to the skin while we sleep.

They, of course, recommended the new Augustinus Bader Night Cream. And so does this beauty writer; I have noticed a new plumpness, smoothness, and hydration to my skin that I didn't have before. Even as I don't sleep that well, my skin doesn't look as fatigued as it would normally look. 

Still, the experts also emphasized that no single product can change your skin if you don't get enough good, consistent sleep

Editor's Pick

Augustinus Bader The Overnight Restorative Cream

Infused with a melatonin-mimicking extract that reduces the appearance of fatigue and stress on your skin while you sleep, this overnight cream promises to be breathable and comfortable while showing firmer and smoother results by the next morning. 

Shop More Night Creams & Overnight Masks:

Elemis Superfood Overnight Prebiotic Cream

This prebiotic cream is formulated with camu camu, cocoa butter, and banana flower extract to leave your skin glowy, moisturized, and protected from free radicals.

Bubble Over Night Hydrating Sleep Mask

Bubble's sleep mask works overnight with its formula of maple sap, mandelic acid, kojic acid, arnica, and sodium PCA to protect the skin barrier, gently exfoliate, moisturize, and soothe. 

Allies of Skin Retinal 0.05% & Peptides Repair Night Cream

Formulated with a signature encapsulated retinal alongside peptides, this powerful night cream delivers hydration, brightness, and anti-aging overnight. 

Medicube Wrapping Mask Collagen Overnight Peel Off Facial Mask

Over 19K reviewers swear by Medicube's overnight peel-off mask, saying its ceramide-packed formula will leave your skin glowy, plump, and hydrated. 

Editor's Pick

PEACH & LILY Overnight Star Night Cream

This K-Beauty night cream is infused with acai berry extract, ginseng, jojoba seed oil, and a peptide complex to revive, hydrate, and help tighten your skin overnight. 

Fresh Lotus Youth Preserve Radiance Renewal Night Cream

This antioxidant-rich cream promises to smooth fine lines, boost radiance, and soothe your skin with its formula filled with super lotus, star fruit leaf extract, and Vitamin E. 

LANEIGE Water Sleeping Mask

This cooling gel-cream is powered by a blend of three types of hyaluronic acids (alongside niacinamide and squalane) to deeply hydrate, retain moisture, and strengthen the moisture barrier.

Editor's Pick

Clarins Extra-Firming Night Refillable Moisturizer

This firming night cream features a powerful formula of Clarin's signature biotech collagen polypeptide, avocado peptides, and niacinamide to firm, plump, smooth, nourish, and brighten your skin overnight. 

How We Choose

The E! Insider Shop editors and writers search the internet to find the best products out there. We interview expert sources, comb through customer reviews, and use our own personal experiences to make shopping easier for our readers.

As an editorial team, we independently create content and determine coverage based on research, reporting and what we think our readers would like to read about. The goal of our content is to provide a service and inform readers who are on the hunt for the latest products to help make their life better. Items are sold by retailer, not E!. Pricing and availability are accurate as of publish time.