Black King Envelope Pillowcase
- machine washable
- hypoallergenic
The 3-second version
- Mulberry silk reduces friction that causes sleep creases and hair tangles
- Hypoallergenic and laboratory tested for sensitive skin
- Envelope closure eliminates zippers that can snag or irritate
- Requires careful laundering per care instructions
- Envelope closure may shift more than zippered versions
- Silk is less forgiving than cotton if washing guidelines ignored
Why it's on GiftsFeed
Mulberry Silk Pillowcase with Envelope Closure
Cotton pillowcases grip skin and hair all night, dragging and creasing every time you turn over. The problem is the weave—those tiny cotton loops create friction that tugs.
Mulberry silk sits smooth at the fiber level, so your face and hair glide instead of catch. This version has laboratory testing and hypoallergenic certification backing the claims, and user studies show measurable reductions in visible sleep lines. For anyone who notices creases in the morning or wakes with tangled, bent hair, the difference is the surface itself.
Good gift when
- People who wake with visible lines on their face
- Anyone dealing with hair breakage or morning tangles
- Those with sensitive skin or allergies to synthetic materials
- Anyone transitioning from cotton who wants less friction overnight
Skip it if Silk requires specific washing and drying care—if you prefer bedding that can go in with regular laundry and high-heat drying without thought, this will add extra steps to your routine.
Specs
- Size
- King / International Standard: 20" x 36" (51cm x 91cm)
- Closure Type
- Envelope
- Material
- Slipsilk mulberry silk
- Hypoallergenic
- Yes, laboratory tested
- Care
- Machine washable (see care instructions)
- Quantity
- 1 pillowcase
What's included
- 1 x King pillowcase with envelope closure
If you're giving it
- No sizing to guess
Ships in manufacturer packaging; wrapping or a gift box may be needed for presentation.
The details
This pillowcase uses mulberry silk construction to create a surface that glides against skin and hair instead of tugging. The envelope closure keeps the pillow secured without hardware that can snag or press into your face during the night.
The fabric has been laboratory tested and carries hypoallergenic certification, making it a choice for sensitive skin. Dermatologists recommend silk pillowcases because the smooth surface creates less friction than cotton weave, which can contribute to creasing and hair disturbance overnight.
In user studies, more than 95 percent of participants reported fewer visible sleep creases and lines after switching to this pillowcase. The material allows skin and hair to move freely rather than catching and pulling as you shift position.
The king size measures 20 inches by 36 inches (51 cm by 91 cm) and fits standard king pillows. The envelope design means no zipper to break or irritate skin—the end simply folds over to hold the pillow in place. Machine washable with proper care, the silk maintains its structure through repeated laundering when washing instructions are followed.
Laboratory-tested silk designed to reduce friction on skin and hair while you sleep
Ships and sold by Slip. About this merchant
Cheaper alternatives
Questions
- How does silk reduce sleep creases compared to cotton?
- Silk has a smooth, low-friction surface at the fiber level, so your skin glides across it instead of catching and dragging. Cotton weaves have tiny loops that grip skin as you move, creating the tugging that leads to visible creases and lines. The reduced friction is why more than 95 percent of users in studies reported fewer noticeable sleep lines with silk.
- What is an envelope closure and how does it work?
- An envelope closure uses an overlapping fabric fold to hold the pillow inside, similar to the flap on a paper envelope. You slide the pillow in through the open end, and the fabric fold keeps it in place without requiring a zipper. This eliminates hardware that can break, snag hair, or press into your face while you sleep.
- Can I wash this in a regular washing machine?
- Yes, the pillowcase is machine washable, but silk requires specific care instructions to maintain its structure and surface. You will need to follow the manufacturer's washing and drying guidelines, which typically involve gentle cycles, cooler water, and air drying or low heat. Ignoring these steps can damage the fabric.
- Will this fit a standard king pillow?
- Yes, the king size measures 20 inches by 36 inches (51 cm by 91 cm), which is designed to fit standard king pillows. The envelope closure accommodates slight variations in pillow thickness by stretching slightly as you insert the pillow.
- What makes this hypoallergenic?
- The pillowcase has been laboratory tested for hypoallergenic properties, meaning it is less likely to trigger allergic reactions than untested materials. Mulberry silk naturally resists dust mites and mold better than many synthetic or cotton fabrics, and the testing confirms it meets standards for sensitive skin.
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