Thermolite Backpacking Sleeping Bags
(1 product)- Sea to Summit (1)
- Women's (1)
- 20 to 39 degrees (1)
- 3 to 4.99 (1)
- Backpacking (1)
- Synthetic (1)
- Deals (1)
- Regular (1)
- Mummy (1)
- 3-season (1)
- Left/Right (1)
- GORE WINDSTOPPER (5)
- Heatseeker (4)
- Pertex (20)
- Thermolite (1)
- Blue (1)
- Sea to SummitVenture 23 F Synthetic Sleeping Bag - Women's$148.73Save 40%compared to $249.00(6)6 reviews with an average rating of 3.7 out of 5 starsTemperature Rating:23 FWeight:3.04 lbsInsulation Type:SyntheticREI OUTLET
Half Dome 2 All-Season Tent
Newly designed, this tent features enhanced strength built for overnight skiing, snowshoe trips & backpacking.
Shop Now
Give the gift of the outdoors
Members, get a $15 bonus e-card when you buy a $150+ gift card. Terms apply.
Shop gift cards
LoremLorem$130 in value
Get $30 in card rewards when approved by Sep 7. Plus, earn a $100 REI gift card after first qualifying purchase. Terms apply.
Apply now
Related Expert Advice articles
Read full article: The 4 Best Sleeping Bags for Backpacking of 2026: Tested
Read full article: Gear Review: Testing the Exped Terra 15 Sleeping Bag
Do I really need a backpacking-specific bag?
Yes. Compared to camping-specific versions, these bags are lighter, pack down smaller and are more efficient at keeping you warm.
Sleeping bag weight
Insulation type and bag shape affect weight the most. Always consider bags of a similar temperature rating when comparing weight.
Sleeping bag fit
Sleeping bags come in regular, long, wide and short sizes (or a mix of the two, like long-wide). Review the bag's size specs for the best fit.
Sleeping bag features
Draft-blocking details, a snug-fitting hood, extra zippers and even a stash pocket can add durability, warmth and function.
Read full article: How to Choose Sleeping Bags for Backpacking
Read full article: Understanding Sleeping Bag Temperature Ratings






