Simapu Mulberry Silk Lined Sleep Cap — Black Adjustable Bonnet with 22 Momme Silk Lining for Curly Hair

Simapu's 100% mulberry silk lined sleep cap is an adjustable, breathable bonnet designed to protect curls, waves, and short-to-mid-length hair overnight while locking in moisture and minimizing friction.

If you want a simple, effective way to preserve hairstyles, reduce breakage and wake up with smoother hair, this silk-lined sleep cap combines a luxurious 22 momme mulberry silk interior with a soft modal exterior for comfort and durability. The bonnet is finished with an elastic band and adjustable buckle so it stays in place without pinching, and it fits most adult head sizes. Lightweight and breathable, it’s suitable for year-round wear from warm summer nights to cooler seasons.

How does this sleep cap protect hair while I sleep?

The silk lining creates a low-friction surface that prevents tangles, split ends and frizz caused by linen or cotton pillowcases. Silk helps retain the hair’s natural oils so strands stay smoother and less prone to breakage.

• 22 momme pure mulberry silk interior for a slippery, hair-friendly surface
• Rich in amino acids that help reduce friction and protect cuticles
• Modal outer layer adds softness and durability for nightly use

Will the bonnet stay on without leaving marks or feeling tight?

This sleep cap features a half-circumference elastic band plus an adjustable buckle, letting you customize the fit so it remains secure without pressing into the forehead. The design suits head circumferences from about 20.5 to 23.6 inches (52–60 cm).

• Adjustable elastic strap for a snug, comfortable hold
• Wide band reduces pressure points and avoids frontal creases
• Lightweight construction prevents slipping during sleep

Is it appropriate for my hair type and daily routines?

The bonnet’s stretch and generous inner volume accommodate waves, curls, braids, straight hair and most short-to-mid-length styles. Because it combines silk and breathable modal, it works for sleeping, skincare, makeup routines and even casual errands.

• Good for curls, waves, straight hair, braids and dry textures
• Useful for sleep, spa time, showers, makeup application and exercise
• Packaged as a gift-ready item for special occasions

How do I care for the silk liner to keep it effective?

To preserve the silk’s natural feel and protective properties, hand wash or use a delicate cycle with a silk-safe detergent and air dry. Avoid high heat and harsh chemicals to maintain the fabric’s strength and sheen.

• Hand wash or gentle machine cycle with silk-friendly detergent
• Air dry flat or on a low-heat setting; avoid bleach
• Store in the included elegant box to protect the cap between uses

Who this is for: The Simapu silk-lined sleep cap is ideal for anyone who wants to reduce nightly friction and preserve styled hair—especially curly and wavy textures, chemically treated or heat-styled strands, and those with short-to-mid-length cuts. It also makes a thoughtful gift for busy people who want low-effort hair care, spa lovers, and anyone seeking a gentler alternative to cotton sleepwear. If you value breathable materials, an adjustable fit, and silk’s smoothing benefits, this bonnet is a practical addition to your nightly routine.