Tough Outdoors Sleeping Bag Liner - Adult Single 37x85, Ultralight Machine-Washable Travel Sleep Sack

Whether you’re staying in hostels, hotels, or pitching a tent, this adult-sized travel sheet doubles as a protective liner and a compact sleep sack. Crafted to be lightweight yet roomy, the liner zips open for easy entry, converts pillows into headrests, and fits most adults up to 6'6". It keeps your bedding fresh, reduces laundry needs, and tucks away into a pack without adding bulk.

How does this liner make travel and hotel stays cleaner and easier?

The liner forms a barrier between you and unfamiliar bedding, reducing contact with hotel sheets and communal sleeping surfaces. It’s machine-washable and quick to dry, so you can freshen it between trips without fuss. The full-length zipper lets you hop in and out without disturbing bedding, while the smooth fabric minimizes friction and heat buildup.

• Single liner dimensions: 37" x 85", suitable for most adults
• Available 74" double option for shared use or couples
• Full-length zipper for fast, no-fuss access
• Machine-washable, lightweight fabric for easy maintenance

Will it keep me comfortable while backpacking or camping?

Designed to be ultralight, the liner adds hardly any weight to your pack while still providing a soft sleep surface. It fits inside sleeping bags to protect insulation and keeps you warmer by adding a thin, comfortable layer. The roomy cut allows movement without feeling constricted, and you can stuff the top into a down jacket to make a quick pillow.

• Ultralight construction ideal for backpackers and bikepackers
• Spacious fit lets you move while sleeping comfortably
• Transforms into a pillow by stuffing excess fabric
• Protects sleeping bag insulation from sweat and dirt

How durable and easy to care for is the Tough Outdoors sleep sack?

Built for repeated travel use, the liner withstands regular machine washing without losing shape or zipper function. The fabric sheds dirt and dries quickly, so it’s practical for multi-night trips or extended journeys. Simple care instructions mean less time worrying about laundry and more time exploring.

• Lightweight yet durable weave resists tearing and abrasion
• Machine-washable fabric for low-effort cleaning
• Zipper designed for frequent opening and closing
• Quick-drying for fast turnaround between uses

What size and fit should I expect, and can it work for two people?

The single liner measures 37" x 85", accommodating most adults up to 6'6" with room to spare. For two people or those who prefer extra space, the 74" double liner option provides a wide sleeping area that functions like a travel sheet for couples. Both sizes keep a low profile when packed, so they won’t dominate your luggage.

• Single: 37" x 85" fits adults up to 6'6"
• Double: 74" width for shared sleeping or more room
• Low packing volume suitable for daypacks and luggage
• Full-length zipper for flexible entry and exit

Who is this for? The Tough Outdoors Sleeping Bag Liner is aimed at travelers who value hygiene, campers and backpackers wanting minimal added weight, and anyone who prefers a consistent sleep surface away from home. It’s also practical for hostel guests, road trippers, or couples who need a compact, washable cover for unpredictable accommodations. If you want a reliable, easy-care sleep sack that protects bedding, fits large adults, and packs down small, this liner is a practical addition to your travel kit.