How to Choose Sleeping Bags for Backpacking
REI Co-op Zephyr +20 Sleeping Bag
This product is not available.
The REI Zephyr +20 sleeping bag keeps you warm when the temperature drops. At this price, you won't want to miss out!
Shop similar productsKey Details
Fill
Polyester fibers
Weight
3 lbs. 2 oz.
Temperature Rating (F)
20 degrees (F)
- REI-exclusive Z-Baffle construction combines 2 insulations that together maximize heat retention far more efficiently than a single insulation
- Mummy shape is thermally efficient, yet roomy enough from shoulder to knee to ensure sleeping comfort
- Hood, insulated muffler and full-length zipper draft tube keep heat in and cold out
- Exterior chest pocket is great for stowing small necessities such as your watch, eyeglasses and lip balm, alleviating middle-of-the-night fumbling
- Special pocket can be stuffed to make a pillow that stays in place; no need for a pillow to take up valuable space in your backpack
- Pad loops provide attachment points to keep your sleeping bag and pad together, so you needn't worry about rolling onto the cold ground (straps not included)
- Differentiated drawcords allow quick identification, even in the dark—neck or hood adjustments are a cinch!
- Ripstop nylon shell offers durability with abrasion- and tear-resistance for years of use
- Nylon stuff sack and cotton storage bag are included
- Right-hand zip
- Special buy
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | Unavailable |
| Tested Comfort | Unavailable |
| Temperature Rating (F) | 20 degrees (F) |
| Temperature Rating (C) | -6 degrees Celsius |
| Weight | 3 lbs. 2 oz. |
| Shell | Ripstop nylon |
| Insulation Type | Synthetic |
| Fill | Polyester fibers |
| Fill Weight | Unavailable |
| Lining | Nylon taffeta |
| Sleeping Bag Shape | Mummy |
| Shoulder Girth (in.) | 60 inches |
| Hip Girth (in.) | 56 inches |
| Stuff Sack Size | 9 x 15 inches |
| Stuff Sack Volume | 11 liter |
| Gender | Unisex |
| Sustainability | From a Climate Label Certified brand |
Buying Advice
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.
