Rectangular sleeping bag COCOON IST91 — silk, 2150×860 mm, 160 g

The COCOON IST91 rectangular sleeping bag in silk measures 2150 × 860 mm and weighs 160 g. Designed as a lightweight sleep sack or liner, it offers a smooth, breathable surface that improves hygiene and comfort in hotels, hostels, alpine huts, boats, planes and trains. The compact pack size (145 × 70 mm) makes it easy to carry in a backpack or travel bag, while the silk fabric provides soft next-to-skin feel and natural temperature regulation. The product includes Insect Shield insect protection integrated into the fabric for added protection during outdoor or open-window use.

Advantages

The silk shell and inner surface are lightweight and packable, delivering a high warmth-to-weight ratio and quick drying compared to heavier liners. At 2150 × 860 mm the rectangular shape gives ample room for movement and can be used as a standalone lightweight sleeping bag or as a liner inside a larger sleeping bag. The integrated Insect Shield treatment helps repel mosquitoes and other biting insects without changing the fabric’s softness or breathability. Small packed dimensions and 160 g weight make it practical for backpacking and travel where space and weight are limited.

Suitable for

• Travel and backpacking where low weight and compact size are priorities
• Use as a hygienic liner in hotels, hostels and shared accommodation
• Sleeping in alpine huts, on boats or during overnight train and plane trips
• Warm-weather camping when a lightweight standalone sleep sack is sufficient

Key specifications

• Material: silk fabric with Insect Shield treatment
• Shape: rectangular
• Outer dimensions: 2150 × 860 mm
• Weight: 160 g
• Packed size: approximately 145 × 70 mm
• Function: sleep sack / sleeping bag liner, standalone lightweight cover

How to use

Unfold the COCOON IST91 and insert yourself into the rectangular silk sack, closing the open end around your shoulders as needed. Use it inside a larger sleeping bag to keep the interior clean and add a layer of comfort, or use it alone in warm conditions. For travel, fold or roll the silk sleeping bag tightly to achieve the compact packed size; store it in its storage pouch when not in use. The fabric is breathable and suitable for direct skin contact.

Usage recommendations

For best results, air the silk liner after each use and wash according to the manufacturer’s care instructions to maintain the Insect Shield effectiveness and fabric quality. Avoid direct contact with sharp objects and rough surfaces to prevent snags; for cooler conditions combine the silk liner with an insulated sleeping bag.