The Slip Silk Sleep Mask is a luxury eye mask made from 22 momme, 6A grade mulberry silk covering the exterior, liner, and elastic band. The Slipsilk brand has operated for more than 10 years and is stocked at Nordstrom. OEKO-TEX STANDARD 100 certification confirms the silk meets chemical safety standards.
The black version blocks 100% of light per flashlight testing, rated 9.8 out of 10 by independent reviewers. Dermatologist Dr. Engelman confirms it reduces skin friction and supports overnight hydration. Glamour named it ‘Best Overall’ after multi-week editor testing. Customer ratings hold at 4.5 out of 5 stars across 246 Amazon reviews, backed by four beauty awards since 2018.
This review covers what Slipsilk material is, how the mask blocks light and protects skin and hair overnight, what real buyers love and complain about, how the Slip compares to Alaska Bear and Blissy at lower price points, and whether the $69 USD price is justified for your sleep needs.
What Is the Slip Silk Sleep Mask?
The Slip Silk Sleep Mask is a luxury light-blocking eye mask crafted from 100% mulberry silk, featuring a silk filler, internal liner, and adjustable strap designed for deep, uninterrupted sleep. The brand markets it as a beauty sleep essential — under the tagline ‘Anti Aging. Anti Sleep Crease. Anti Bed Head.’ And honestly? It’s earned that reputation.
Two product versions exist. The original flat mask suits everyday sleeping and travel. The Contour Lovely Lashes version features extra eye padding designed for wearers with lash extensions. Both come in more than 20 colors, including a zodiac design collection.
What Is Slipsilk Material?
Slipsilk is a proprietary 22 momme, 6A grade long-fiber mulberry silk developed and refined by the Slip brand over 10 years to meet strict internal quality standards. Here’s the thing: this silk grade matches the specification used by premium competitors Blissy and Manta. It’s the real deal.
The construction goes beyond surface silk. The exterior, filler, inner liner, and even the elastic band are covered in mulberry silk. Silk fibers are significantly less absorbent than cotton or synthetic alternatives, which helps retain skin moisture and keeps skincare products on the face rather than transferring to the mask.
OEKO-TEX STANDARD 100 certification confirms the silk meets chemical safety standards. The brand enforces strict quality guidelines and uses non-toxic dyes throughout the product. No shortcuts in the formula.
Slipsilk Specifications:
- Material: 22 momme, 6A grade long-fiber mulberry silk
- Coverage: Exterior, filler, inner liner, and elastic band
- Certification: OEKO-TEX STANDARD 100
- Dyes: Non-toxic throughout
- Care: Hand wash only in cool water with mild detergent
The Slip Sleep Mask is manufactured by Slipsilk, a brand carried at Nordstrom and endorsed by board-certified dermatologists, celebrity hairstylists, and public figures including Victoria Beckham. The brand has operated for more than 10 years in the luxury sleep accessories market. That’s not a flash-in-the-pan brand — it’s a track record.
Industry recognition supports the brand’s credibility. The Sleep Mask won the Selfridges Beauty Awards 2018, the Allure Best of Beauty Award (Skinnies category), POOSH Approval, and Oprah Daily Sleep O-Wards 2024 for the Contour version. Multiple independent judges. Multiple years. Consistent results.
How Does the Slip Silk Sleep Mask Work?
The Slip Sleep Mask works by blocking all incoming light, signaling the brain to increase melatonin production, which promotes deeper and longer REM sleep cycles. Think of it this way: it functions as a blackout curtain placed directly over the eyes. Simple concept. Real results.
Silk generates significantly less friction against skin than cotton or polyester. This low-friction surface prevents the mechanical tugging that causes sleep lines and creasing around the delicate eye area during the night. It’s not just comfortable — it’s actively protecting the skin.
Silk fibers are also less absorbent than most other materials. The mask keeps skin moisture and expensive skincare products on the face where they belong, rather than absorbing them into the fabric as cotton masks do. Your retinol stays on your face, not on the mask.
Does the Slip Silk Sleep Mask Block All Light?
Yes. The Slip Sleep Mask in black blocks 100% of light, confirmed by flashlight testing in which no light passed through the material whatsoever. Reviewer AbbyBReviewing rated the black version 9.8 out of 10 for this reason. That’s a nearly perfect score.
Lighter color versions tell a different story. The Hollywood Hills color allowed light to pass through visibly in the same flashlight test, earning a 9.4 out of 10. So what does that mean for you? Simple: buy the black version if complete darkness is the goal. Other colors look great, but they’re not blackout masks.
How Does Silk Protect Skin Compared to Cotton?
Silk protects skin from the oils and bacteria that cotton pillowcases and masks transfer to the face during sleep, reducing clogged pores and breakouts through its natural antibacterial and antimicrobial properties. Cotton is the primary material in most pillowcases, and it acts as a vehicle for bacteria transfer. That’s not ideal for acne-prone skin.
A dermatologist cited in NBC News confirmed silk is breathable. Unlike velvet, plush foam, or cotton, silk doesn’t trap heat against the skin. The Slip mask doesn’t cause sweating or overheating during sleep per multiple reviewer accounts. In fact, the silk’s cool temperature is one of the top-cited pleasures.
The smooth silk surface also reduces friction on hair and lashes overnight. Hair breakage, frizz, and tangling decrease significantly when the sleeping surface offers low resistance. The Contour version adds physical space between the silk and the eyelashes for further protection.
What Are the Benefits of the Slip Silk Sleep Mask?
The Slip Sleep Mask delivers simultaneous benefits across sleep quality, skin health, hair protection, and lash preservation, addressing the full spectrum of beauty sleep in a single product. Dermatologist Dr. Engelman confirmed it ‘reduces friction and prevents skin creasing overnight and supports skin hydration.’ That’s a dermatologist endorsement — not a marketing claim.
Skin hydration is a primary benefit. Because silk fibers absorb significantly less moisture than cotton, the expensive skincare applied before bed stays on the skin through the night. The mask doesn’t strip or dilute active ingredients. Good news if you’ve been investing in quality serums.
Acne reduction is a secondary benefit. Silk’s natural antibacterial and antimicrobial properties repel moisture and prevent bacteria growth. Reviewers with sensitive or acne-prone skin report clearer skin after switching to silk from cotton alternatives. Worth knowing if breakouts are a concern.
Main Benefits:
- Blocks light to extend REM sleep cycles
- Prevents sleep creases and facial lines
- Retains skin moisture and preserves applied skincare
- Reduces friction on hair to prevent breakage and frizz
- Antibacterial silk surface reduces acne risk
- Contour version protects lash extensions from compression
Does the Slip Sleep Mask Prevent Sleep Creases?
Yes. The Slip Sleep Mask prevents sleep creases by eliminating the high-friction contact between the eye area and the mask surface during movement throughout the night. Glamour contributor Charlotte Twine confirmed it directly, reporting that as a side-sleeper, the extremely cushy mask prevented the typical creases of bed face the next morning. That’s a real-world test from a side sleeper — the toughest use case.
The mechanism is friction reduction. Unlike foam or cotton masks that mechanically compress and tug skin during tossing and turning, the silk surface moves with the skin rather than against it. The periorbital area — most prone to forming permanent expression lines — benefits most from this property.
Does It Help With Lashes and Hair?
Yes. The Slip Contour Lovely Lashes Sleep Mask features extra padding around the eye cups that prevents the mask from touching eyelids or lashes at all, allowing the wearer to fully open their eyes inside the mask without any contact. Here’s the kicker: this design specifically protects lash extensions from compression damage that flat masks cause.
Hair benefits apply to both versions. The silk surface reduces hair friction during sleep, preventing overnight breakage and frizz. Glamour confirmed the mask ‘never leaves creases in hair and does a great job of staying put all night long’ without tangling or snagging. It’s a win for anyone who wakes up with flattened or kinked hair.
Can Wearing a Silk Sleep Mask Improve REM Sleep?
Yes. Wearing a sleep mask promotes deeper REM sleep cycles by eliminating ambient light that suppresses melatonin production, the hormone that regulates sleep onset and duration. Sleep eye masks function as portable blackout curtains, blocking even low-level light that disrupts the sleep-wake cycle. Science is clear on this one.
The Slip mask specifically adds a comfort advantage. The cool, lightweight silk doesn’t create the pressure or heat buildup that disrupts sleep with heavier foam masks. Multiple reviewers describe staying in their ‘sleep zone’ through the night without waking from mask discomfort. And here’s the best part: it does all of this without feeling like you’re wearing anything heavy.
What Do Slip Silk Sleep Mask Reviews Say?
The Slip Silk Sleep Mask holds a 4.5 out of 5 star rating across 246 Amazon reviews, with individual reviewer scores of 9.8 out of 10 for the black version and 9.4 out of 10 for lighter colors from a YouTube reviewer with 14,000 subscribers. Glamour named it ‘Best Overall’ sleep mask after editor and dermatologist testing. That’s a strong consensus.
The editorial assessment is consistent. Glamour described it as ‘by far the best we have ever tried’ after comparing multiple sleep masks across material, comfort, sleep quality, and skin results — testing periods ranging from weeks to months. Not a quick opinion. A thorough verdict.
What Do Customers Love About the Slip Sleep Mask?
Customers consistently praise the silk texture, describing it as ‘softer than any velvet jacket, cotton T-shirt or plush towel,’ combined with complete light blocking and a cool temperature that keeps the face comfortable throughout the night. These three qualities appear across the majority of positive reviews. The softness is what hooks people first.
Longevity is a recurring theme. One reviewer reported four years of daily use without replacement. The mask continued blocking light, holding its shape, and maintaining softness through years of hand washing. This durability changes the value calculation for repeat buyers.
Dermatologist Dr. Engelman provided the strongest professional endorsement, stating that Slip’s high-quality mulberry silk reduces friction and prevents skin creasing overnight. Dr. Engelman also confirmed these masks support skin hydration and help preserve smooth skin. A board-certified dermatologist doesn’t say that about cheap masks.
What Complaints Do Buyers Have?
The primary complaint involves lighter color versions. Non-black colors allow light to pass through the silk, confirmed by flashlight testing, and buyers needing complete light blocking report disappointment with lighter shades. The black version doesn’t share this limitation. So if you need darkness — go black.
Fit is a secondary concern. Some testers found the scrunchie-style elastic band too small, even for those with smaller heads. The mask lacks adjustable buckles or Velcro, limiting customization for users with larger head circumferences. It’s the one area where a competitor like Manta has an edge.
The mask arrives without a travel bag or protective case. One reviewer purchased a separate Manta travel bag to protect the mask during travel. The hand-wash-only care requirement also adds ongoing effort compared to machine-washable alternatives.
Common Complaints:
- Lighter colors allow light to pass through
- Elastic band too small for some head sizes
- No travel bag or case included
- Hand wash only adds care effort
How Does Slip Compare to Other Silk Sleep Masks?
The Slip Sleep Mask occupies the premium tier of the silk sleep mask market at $69 USD, competing against Alaska Bear (~$20-$25 USD) at the budget end and Blissy (~$50-$60 USD) at the mid-premium level. The primary differentiator is full-coverage silk construction — not just a silk surface layer. That distinction matters more than most buyers realize.
Most competitors apply silk only to the exterior face layer. Slip covers the exterior, filler, inner liner, and elastic band entirely in 22 momme mulberry silk. This full-coverage construction creates a more consistent experience against every surface the mask contacts.
Silk Sleep Mask Comparison:
| Brand | Silk Grade | Price (USD) | Full Silk Coverage |
| Slip | 22 momme, 6A grade | $69 | Yes (exterior, liner, elastic) |
| Blissy | 22 momme, 6A grade | ~$55 | Exterior and liner |
| Alaska Bear | Thinner silk layer | ~$22 | Face layer only |
| Manta Silk | 22 momme, 6A grade | ~$50 | Exterior and liner |
Slip vs Alaska Bear: Which Is Better?
The Alaska Bear Natural Silk Sleep Mask earned the ‘Top Pick’ designation from NY Times Wirecutter as a ‘silky crowd-pleaser’ with above-average performance in fit, adjustability, and comfort at approximately $20-$25 USD. It’s the most widely recommended budget silk alternative. Wirecutter doesn’t hand out top picks lightly.
The key difference is construction depth. Slip uses 22 momme silk on every layer including the elastic; Alaska Bear uses a thinner silk layer on the face surface only. Slip lasts longer per user reports, but at more than double the cost. Alaska Bear is the right choice for budget buyers needing basic silk comfort and light blocking.
Slip vs Blissy: What Is the Difference?
Both Slip and Blissy use the same raw material specification: 22 momme, 6A grade mulberry silk, meaning the fabric quality between them is essentially identical at the material level. Here’s what that actually means: the differences lie in brand positioning, pricing, and endorsement history — not the silk itself.
Blissy retails at approximately $50-$60 USD versus Slip’s $69 USD. Slip carries more extensive celebrity and dermatologist endorsements, a longer track record, and broader retail distribution including Nordstrom. Buyers choosing between the two are primarily paying for brand equity rather than a material quality difference.
Are There Any Side Effects of Wearing a Sleep Mask?
Sleep mask side effects are primarily linked to poor material choices: synthetic and cotton masks can cause overheating, skin oil transfer, and bacteria buildup, all of which silk masks are specifically designed to eliminate. Properly made silk masks like the Slip create minimal risk for most adult users. Bottom line: the material is the key variable.
Breathability is confirmed. A dermatologist cited in NBC News verified that silk is breathable as a face contact material. One reviewer specifically noted the Slip mask doesn’t cause sweating or overheating during the night, unlike heavier foam alternatives that trap body heat. In fact, the silk actually feels cool against the skin.
Who Should Avoid the Slip Sleep Mask?
The Slip brand’s own safety instructions state: ‘Do not use the sleep mask if you have difficulty breathing or removing the mask by yourself.’ The product is intended for adults only and should not be used by individuals who cannot independently remove it during sleep. Safety first — always.
Budget-sensitive buyers represent a practical exclusion. At $69 USD, the Slip mask isn’t cost-justified for those needing only basic light blocking without skin or hair benefits. The Alaska Bear mask at approximately $20-$25 USD delivers comparable light-blocking performance for straightforward sleep improvement needs.
Is the Slip Silk Sleep Mask Legit?
Yes. The Slip Silk Sleep Mask is OEKO-TEX STANDARD 100 certified for chemical safety, sold at Nordstrom, and carries multiple industry beauty awards earned through independent judging panels. Board-certified dermatologists including Dr. Engelman publicly endorse the product by name. That’s not a brand just claiming quality — it’s verified.
The brand’s retail presence at Nordstrom — a retailer with strict vendor quality standards — adds a layer of external verification. Slipsilk has operated for more than 10 years in the luxury sleep accessories market without product safety controversies or material misrepresentation claims from major consumer testing bodies. A decade of clean record speaks clearly.
What Awards Has the Slip Sleep Mask Won?
The Slip Sleep Mask has won the Selfridges Beauty Awards 2018 (Sleep Mask), Allure Best of Beauty Award (Skinnies), Women’s Health Editors Choice Awards 2021, and Oprah Daily Sleep O-Wards 2024 (Contour version). These awards span over six years of consistent recognition. And here’s what that means: independent judges across multiple categories keep landing on the same product.
Editorial endorsements extend beyond formal awards. Glamour named it ‘Best Overall’ sleep mask after multi-week editor testing. New York magazine featured the mask. POOSH granted POOSH Approved status. The consistent placement across independent outlets supports the product’s legitimacy.
Awards and Recognition:
- Selfridges Beauty Awards 2018 — Sleep Mask category
- Allure Best of Beauty Award — Skinnies category
- Women’s Health Editors Choice Awards 2021 — Contour version
- Oprah Daily Sleep O-Wards 2024 — Contour version
- Glamour ‘Best Overall’ sleep mask
- POOSH Approved
How Much Does the Slip Silk Sleep Mask Cost?
The Slip Silk Sleep Mask retails at $69 USD through Nordstrom and $72 USD on the Slip website; the Contour Lovely Lashes version and zodiac design masks are priced at $83-$84 USD. In Australian dollars, the standard mask retails at approximately AU$65. It’s a premium price — but a transparent one.
Afterpay is available on the Slip website, breaking the $72 USD purchase into four payments of $18 USD each with instant approval and no additional cost. Free standard shipping applies to orders over $90 USD, and express shipping becomes free on orders over $240 USD.
Pricing Overview:
| Version | Price (USD) | Where to Buy |
| Standard Sleep Mask | $69 | Nordstrom |
| Standard Sleep Mask | $72 | Slip website |
| Contour Lovely Lashes | $84 | Slip website |
| Zodiac Design Masks | $83 | Slip website |
Is the Slip Sleep Mask Worth the Price?
Yes. Reviewers and dermatologists consistently rate the Slip mask as worth the premium price. One buyer stated: ‘If you value your sleep and your skin, yes. It blocks light beautifully, feels luxuriously cool and soft… it’s a splurge, but it lasts.’ That’s the honest buyer verdict — not marketing copy.
The longevity calculation supports the value argument. One reviewer used theirs for four years without replacement. At $69 USD over four years, the cost equals approximately $17.25 USD per year or $1.44 USD per month. Budget alternatives purchased multiple times over the same period often exceed this total cost.
The Slip Silk Sleep Mask is available at the official Slip website (slipintosilk.com), Nordstrom, and Amazon (ASIN: B01JZX0Y3U), where it currently ranks #148 in the Sleep Masks category. All three channels offer authentic product from verified retail sources.
The Slip website carries the full color range of 20+ options including the zodiac collection and all seasonal designs. Nordstrom and Amazon typically stock the core color range. Buying directly from Slip guarantees access to exclusive colorways and promotional offers like complimentary shipping on orders over $90 USD.
Where to Buy:
- Slip website (slipintosilk.com) — full color range, Afterpay, free shipping over $90 USD
- Nordstrom — $69 USD, reliable retail authentication
- Amazon — ASIN B01JZX0Y3U, Prime eligible
Is the Slip Silk Sleep Mask Worth It?
The Slip Silk Sleep Mask earns its ‘Best Overall’ ranking from Glamour and its consistent dermatologist endorsements through genuine performance: complete light blocking (black version), multi-year durability, and proven skin and hair benefits in one product. No comparable alternative at this price point covers exterior, liner, and elastic in full 22 momme mulberry silk.
Who Is the Slip Silk Sleep Mask Best For?
The ideal buyer is a light-sensitive sleeper who values skin and hair protection alongside sleep quality: side sleepers prone to sleep creases, travelers needing reliable light blocking, beauty-conscious buyers protecting skincare investments, and lash extension wearers needing the Contour version. This specific buyer group gets maximum value from the Slip mask’s feature set.
Glamour testers delivered the clearest summary: ‘Slip’s mask is by far the best we have ever tried. It never leaves creases in hair and does a great job of staying put all night long.’ For buyers matching the ideal profile, the $69 USD price tag reflects a product that outperforms every cheaper alternative across the full set of criteria that matter.