loaded 6 results

COCOON Mummy Sleeping Bags

(6 products)

Products (6)

Sort: Best Match

COCOONMerino Wool MummyLiner
$129.95
25 reviews with an average rating of 4.2 out of 5 stars
Added Warmth (F):
Up to 10 degrees
Weight:
1.09 lbs
COCOONSilk MummyLiner
$89.95
89 reviews with an average rating of 4.2 out of 5 stars
Added Warmth (F):
Up to 10 degrees
Weight:
0.3 lbs
COCOONMicrofiber MummyLiner
$38.95
77 reviews with an average rating of 4.3 out of 5 stars
Added Warmth (F):
Up to 5 degrees
Weight:
0.51 lbs
Top Rated
COCOONCOOLMAX MummyLiner
$59.95
54 reviews with an average rating of 4.6 out of 5 stars
Added Warmth (F):
Up to 5 degrees
Weight:
0.57 lbs
Only at REI
COCOONOrganic Cotton MummyLiner
$49.95
0 reviews
Added Warmth (F):
Up to 5 degrees
Weight:
0.84 lbs
Bundle & save

Save 10% when you bundle together any full-price REI Co-op brand tent, sleeping bag & sleeping pad.
Shop now
New arrival
COCOONLyocell MummyLiner
$59.95
0 reviews
Added Warmth (F):
Up to 10 degrees
Weight:
0.65 lbs
Earn 15% in total rewards

Get 5% on all REI Co-op purchases plus the 10% Co-op Member Reward you earn on eligible full-price purchases.
Apply now

Terms apply

Sort: Best Match

Related Expert Advice articles

How will you be using your liner?

For backpackers, a mummy-shaped bag liner helps keep your sleeping bag free of dirt and body oils, helping it last longer. A liner can also be used in place of a sleeping bag in hot climates.
For travelers, a rectangular bag liner or travel sheet keeps you separated from bedding of questionable cleanliness or with possible bedbug infestations.

Which liner material is right for you?

Silk: Very lightweight, compact and insulates in cold weather. Absorbent and breathable in warm weather. Price: moderate to expensive.
Cotton: Strong, durable and absorbent, but not the lightest or most compact. Price: economical.
Fleece and microfleece: Warmer, heavier, soft, moisture-wicking and quick-drying, but the mid- and heavyweight varieties are bulky. Price: moderate.
Synthetics (e.g., CoolMax^®): Moisture-wicking, breathable, ideal for humid conditions and stretchy for restless sleepers. Price: moderate.
Insulated (e.g., Thermolite^®): Adds enough warmth to greatly extend the range of a lightweight bag. It dries faster than cotton. Price: moderate to expensive.