Ultralight Mummy Sleeping Bag Liner

Sleep Cleaner. Stay Warmer. Pack Lighter.

The Ultralight Mummy Sleeping Bag Liner is a compact, nylon travel liner designed to extend the warmth of your sleeping bag, keep it clean on multi-day trips, and serve as a standalone sleep layer in warm conditions. At just 138g, it adds almost nothing to your pack weight — but makes a real difference on the trail.

Key Features

• Ultralight Nylon Shell – 138g total weight; packs down to a fist-sized stuff sack; ideal for moto-camping and backpacking where every gram counts
• Mummy Cut – Contoured shape reduces dead air space and pairs perfectly with mummy-style sleeping bags
• Polyester Fill – Comfortable temperature range above 15°C; adds a warmth layer in cooler conditions when used inside a bag
• Splicing Single Design – Can be zipped together with a compatible liner for a double configuration
• Standard Length – Fits adults up to 1.8m (5’9”) in height
• Available in Green & Grey – Clean, neutral colorways that work with any kit

Specifications

• Material: Nylon shell / Polyester fill
• Weight: 138g / 4.9oz
• Comfortable Temp: 15°C (59°F) and above
• Type: Splicing Single Sleeping Bag Liner
• Fits: Adults up to 1.8m (5’9”)
• Available Colors: Green, Grey

When to Use It

Use it solo on warm summer nights, inside your sleeping bag to add warmth and keep the bag clean, or as a hostel/hotel travel sheet. For moto-campers doing multi-day routes, it’s the easiest way to extend the life of your sleeping bag between washes.