MummyLiner™ COOLMAX® Sleeping Bag Liner

The MummyLiner™ COOLMAX® Sleeping Bag Liner is a mummy-style sleeping bag liner designed for campers, backpackers, travelers, and outdoor sleepers who want added comfort inside their sleeping bag. Made with COOLMAX® EcoMade technology, this liner helps wick moisture, regulate temperature, and add up to 8.4°F of warmth to a sleeping bag.

Its mummy shape includes a wide top opening for easier entry and exit, a contoured foot end designed to match the shape of a sleeping bag, and a drawstring hood for added coverage. Double-stitched construction and an included compact stuff sack make it a practical liner for camping, travel, and overnight outdoor use.

Features & Benefits

• Adds extra warmth: Adds up to 8.4°F to a sleeping bag for added comfort in cooler conditions.
• Moisture-wicking comfort: COOLMAX® EcoMade technology helps wick away moisture and support temperature regulation.
• Easy entry and exit: Wide top opening makes it easier to get in and out of the liner.
• Sleeping-bag-friendly shape: Contoured foot end is designed to match the shape of a mummy-style sleeping bag.
• Built for outdoor use: Double-stitched construction helps improve durability for camping and travel.
• Packs easily: Includes a compact, lightweight stuff sack for storage and portability.
• Added hood coverage: Drawstring hood helps seal out drafts and provide extra coverage on chilly nights.

Best For

• Camping and backpacking
• Travel and hostel use
• Adding comfort inside a mummy sleeping bag
• Warm-weather moisture management
• Cool-weather sleeping bag warmth boost
• Keeping the inside of a sleeping bag cleaner

For customers searching for a sleeping bag liner, mummy liner, COOLMAX® liner, or moisture-wicking travel liner, the MummyLiner™ COOLMAX® offers a lightweight way to improve comfort inside a sleeping bag. Its recycled COOLMAX® EcoMade fabric, shaped footbox, drawstring hood, and packable stuff sack make it a useful piece of camp and travel gear.

Available from Red Beard’s Outfitter in Mobile, Alabama, this sleeping bag liner is a smart addition for Gulf Coast campers, backpackers, Scouts, road trippers, and travelers who want a packable liner for outdoor sleeping, warm-weather trips, and cooler nights at camp.

Frequently Asked Questions