ZIMASILK Mulberry Silk Sleep Bonnet for Long Hair — Double-Layer, Tie-Band (Black)

ZIMASILK's 100% Mulberry Silk bonnet is a double-layer, tie-band sleep cap designed to protect long hair overnight while staying comfortable and secure.

Sleep-time hair protection that blends premium materials with practical details: this black ZIMASILK bonnet is made from 6A-grade Mulberry silk in a double-layer construction, finished with long cooling ties to keep the cap in place without pressure. OEKO-TEX certification and a hypoallergenic profile make it suitable for sensitive skin, and its wrap-style silhouette works equally well as a treatment cap or a nightly sleep bonnet.

How does this bonnet keep long hair protected while I sleep?

The double-layer 6A Mulberry silk creates a smooth, low-friction surface that reduces tugging and friction between hair and fabric. The generous internal volume and wrap-style tie provide enough room for long or voluminous hair, preventing compression and preserving styles.

• Double-layer silk reduces friction and retains moisture.
• Spacious interior accommodates long, thick, or textured hair.
• Wrap tie secures the bonnet gently without tight elastic marks.
• Black color hides product or styling residue for neat nights.

Will the ties stay comfortable all night without slipping?

The bonnet uses long, cooling silk ties rather than a tight elastic band, so it stays in place through movements without causing pressure around the forehead. The breathable silk fibers also help prevent overheating, making the cap suitable for year-round use.

• Long tie band custom-adjusts for a secure fit.
• Silk allows air flow to reduce heat buildup.
• Pressure-free design avoids headaches or marks.
• Suitable for side and back sleepers who shift positions overnight.

Is this bonnet safe for sensitive skin and suitable for hair treatments?

ZIMASILK's bonnet carries OEKO-TEX certification and is made from hypoallergenic Mulberry silk, reducing the risk of irritation for sensitive scalps and facial skin. Its wrap-style and roomy fit also make it convenient as a treatment cap for oil or conditioning treatments that need to be kept in place overnight.

• OEKO-TEX certified silk minimizes exposure to harmful substances.
• Hypoallergenic fabric reduces irritation risks for sensitive skin.
• Works as a treatment cap for leave-in conditioners or oils.
• Hand-wash care preserves silk quality and longevity.

How should I care for this silk bonnet to keep it soft and long-lasting?

To maintain sheen and structure, hand wash the bonnet in cold water using a mild detergent and avoid bleach or harsh chemicals. Air-dry the cap away from direct heat or sunlight and store it folded or in its box to prevent creases and keep the silk fibers smooth.

• Hand wash cold with mild detergent; do not bleach.
• Air dry flat or hung away from direct sun or heat.
• Store in its box or a breathable bag to preserve shape.
• Contact ZIMASILK customer support for any product concerns within 180 days.

Who is this for? If you have long, thick, or fragile hair and want to reduce breakage, preserve styles, and minimize friction while sleeping, this ZIMASILK Mulberry silk bonnet is built for you. It also suits anyone with sensitive skin or those who regularly use overnight hair treatments and prefer a pressure-free tie closure over elastic. Packaged as a gift-ready item, it’s a practical present for partners, family members, or beauty enthusiasts who value silk’s benefits without compromising on comfort.