Thermarest Sleeping Bag Liner

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A reliable liner that keeps your sleep system fresher for longer on the trail.

Pajak says: 

The Cocoon liner is an essential piece of gear for every outdoor enthusiast. It protects your sleeping bag from dirt, boosts thermal insulation, and ensures hygiene, no matter where you sleep. Made from hypoallergenic microfiber, it’s also ideal for sensitive skin. Compact dimensions and a compression sack make it easy to carry. Perfect for hostels, camping, and trails, it guarantees restful sleep in all conditions.

Our Verdict

The Pajak Sleeping Bag Liner is made from a fine, quick-drying microfiber that feels smooth and breathable throughout the night. It would be suitable for multi-day trips where keeping your down bag clean matters, or for mixed hostel-and-camping itineraries. At 259g (regular), it’s not the lightest on the market, but the extra durability and comfort are noticeable. It’s easy to care for, and the included stuff sack keeps it tidy in your pack. I didn’t notice much added warmth, but it works well as a barrier between skin and bag, especially if you’re using your sleep system night after night. The fabric is non-irritating and dries quickly if you wash it on the go.

– Reviewed by Ultralight Outdoor Gear

Features

• Stuff sack included

Specifications

• Short Weighs: 250g (Excluding Stuff Sack)
• Regular Weighs: 259g
• Long Weighs: 289g
• Packing Volume: 0.5L

Material & Construction

• Fabric: Hypoallergenic microfiber (quick-drying, gentle on the skin)