Sleeping bag COCOON ST67 semi-rectangular silk adult — 2200×900 mm, 160 g

COCOON ST67 semi-rectangular silk sleeping bag liner for adults measures 2200 × 900 mm and weighs 160 g. Made from natural mulberry silk, this lightweight sleep sack is designed to provide a hygienic barrier between the sleeper and shared bedding in hostels, hotels, alpine huts or on transport. Its compact packed dimensions (145 × 65 mm) and low weight make it suitable for backpacking, light travel and situations where quick-drying, breathable fabric is required.

Advantages

The silk construction offers a smooth, breathable surface that reduces friction and feels comfortable against the skin while remaining highly packable. At just 160 g the liner adds minimal weight to luggage, and the semi-rectangular cut provides extra room around the shoulders and feet compared with a mummy-style liner. Silk naturally wicks moisture and dries quickly, helping to maintain hygiene and comfort during multi-day trips and stays in variable conditions.

Suitable for

• Backpacking and ultralight travel where reducing weight and bulk is important
• Hostels, hotels and alpine huts as a hygienic sleeping barrier
• Camping in warm climates or summer use as a liner or lightweight quilt
• Overnight travel on trains, planes and boats

Key specifications

• Material: mulberry silk fabric
• Shape: semi-rectangular (semi-rectangular / roomy cut)
• Dimensions (unpacked): 2200 × 900 mm
• Weight: 160 g
• Packed dimensions: 145 × 65 mm
• Breathability: high, natural fibre
• Drying properties: quick-drying

How to use

Unpack the COCOON ST67 and unfold it inside the sleeping space. Enter the liner head-first and close any built-in zipper or overlap to secure the opening if applicable. Use the silk liner directly with hostel or hotel sheets, inside a sleeping bag for added hygiene and comfort, or as a lightweight outer layer in warm conditions. After use, air the liner and follow care instructions: hand wash or machine wash on a gentle cycle with mild detergent and dry out of direct sunlight to preserve the silk fibres.

Usage recommendations

For extended trips, carry the liner in its stuff sack to keep it compact and clean. Avoid contact with sharp objects and rough surfaces to reduce the risk of snags. When used as an inner liner, combine with a sleeping bag rated for the expected temperatures rather than relying on the silk liner alone in cold conditions.