What are some popular brands for sleeping bag liners at REI?

The top brands for sleeping bag liners include: Sea to Summit COCOON Browse our selection of top outdoor gear and apparel brands.

How can I earn a Co-op Member Reward on my sleeping bag liners purchase?

REI Co-op Members get 10% back annually on every eligible purchase, including most full-priced sleeping bag liners. (10% is typical but not guaranteed.) To earn or redeem rewards, buy a one-time $30 lifetime membership, or sign in as a member. See details about the Co-op Member Reward .

How much do sleeping bag liners cost?

At REI Co-op, we carry a wide range of sleeping bag liners that can start under $50 with some higher-end brands and models costing over $100.

loaded 19 results

Sleeping Bag Liners

(19 products)

Products (19)

Sort: Best Match

Sale Ends Sep 1
Sea to SummitReactor Thermolite Extreme Sleeping Bag Liner
$59.89 - $63.69
Save 25%
compared to $79.95 - $84.95
360 reviews with an average rating of 4.3 out of 5 stars
Weight:
0.75 to 0.8 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitSilk Blend Travel Sleeping Bag Liner
$71.19 - $74.89
Save 25%
compared to $94.95 - $99.95
61 reviews with an average rating of 4.7 out of 5 stars
Weight:
0.29 to 0.31 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitSilk Blend Sleeping Bag Liner with Pillow Sleeve
$74.89
Save 25%
compared to $99.95
19 reviews with an average rating of 4.5 out of 5 stars
Weight:
0.35 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitComfort Sleeping Bag Liner with Pillow Sleeve
$41.19
Save 25%
compared to $54.95
15 reviews with an average rating of 4.7 out of 5 stars
Weight:
0.77 lbs
Sale Ends Sep 1
Sea to SummitReactor Thermolite Sleeping Bag Liner
$52.39 - $56.19
Save 25%
compared to $69.95 - $74.95
190 reviews with an average rating of 4.4 out of 5 stars
Weight:
0.59 to 0.63 lbs
Top Rated
COCOONCOOLMAX Mummy Liner
$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
COCOONMicrofiber Mummy Liner
$38.95
75 reviews with an average rating of 4.3 out of 5 stars
Added Warmth (F):
Up to 5 degrees
Weight:
0.51 lbs
COCOONSilk Mummy Liner
$89.95
86 reviews with an average rating of 4.2 out of 5 stars
Added Warmth (F):
Up to 10 degrees
Weight:
0.3 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitBreeze Sleeping Bag Liner with Pillow Sleeve and Insect Shield
$59.89
Save 25%
compared to $79.95
14 reviews with an average rating of 4.7 out of 5 stars
Weight:
0.73 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitReactor Thermolite Fleece Sleeping Bag Liner
$67.39 - $71.19
Save 25%
compared to $89.95 - $94.95
36 reviews with an average rating of 4.7 out of 5 stars
Weight:
0.86 to 0.93 lbs
COCOONTravelSheet - Egyptian Cotton
$54.95
9 reviews with an average rating of 4.0 out of 5 stars
Added Warmth (F):
Up to 5 degrees
Weight:
0.57 lbs
COCOONMerino Wool Mummy Liner
$129.95
24 reviews with an average rating of 4.2 out of 5 stars
Added Warmth (F):
Up to 10 degrees
Weight:
1.09 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitComfort Sleeping Bag Liner
$33.69
Save 25%
compared to $44.95
16 reviews with an average rating of 4.7 out of 5 stars
Weight:
0.64 lbs
Only at REI
COCOONOrganic Cotton MummyLiner
$44.95
0 reviews
Added Warmth (F):
Up to 5 degrees
Weight:
0.84 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitBreeze Sleeping Bag Liner with Pillow Sleeve
$52.39
Save 25%
compared to $69.95
8 reviews with an average rating of 4.8 out of 5 stars
Weight:
0.73 lbs
Sale Ends Sep 1
Top Rated
Sea to SummitBreeze Sleeping Bag Liner with Insect Shield
$63.69
Save 25%
compared to $84.95
11 reviews with an average rating of 4.7 out of 5 stars
Weight:
0.63 lbs
COCOONCOOLMAX Travel Sheet
$59.95
40 reviews with an average rating of 4.4 out of 5 stars
Added Warmth (F):
Up to 5 degrees
Weight:
0.68 lbs
Sea to SummitSilk+Cotton Blend Travel Liner
$62.73
Save 30%
compared to $89.95
Members use code LABORDAY2025 for an extra 20% off at REI Outlet
4 reviews with an average rating of 3.0 out of 5 stars
Weight:
0.34 lbs
REI OUTLET
Sale Ends Sep 1
Sea to SummitBreeze Sleeping Bag Liner
$52.39 - $56.19
Save 25%
compared to $69.95 - $74.95
9 reviews with an average rating of 4.3 out of 5 stars
Weight:
0.59 to 0.62 lbs