The Best Sleeping Bags
Our Picks
Kelty Cosmic 20°F Down Sleeping Bag
The sleeping bag that does everything well. 550-fill down provides genuine warmth to 20°F, it packs down small enough for backpacking, and the $149 price is shockingly affordable for down insulation. It's the most recommended all-around bag on r/CampingGear.
What we like
- 550-fill down delivers warmth-to-weight efficiency
- $149 price is 30-40% less than comparable bags
- Packs to 8" x 18" — fits in backpacks
- DWR treatment on shell adds water resistance
- Draft tube and collar seal in warmth effectively
- Regular length fits people up to 6'
What we don't
- 3 lbs 4 oz weight is heavier than premium ultralight bags
- 550-fill down isn't as compressible as 800-fill
- Not water-resistant in sustained wet conditions
- Zipper can snag if you're not careful
| Temperature rating | 20°F (-7°C) |
|---|---|
| Insulation | 550-fill power down |
| Weight | 3 lbs 4 oz (1.47 kg) |
| Packed size | 8" x 18" |
| Shell fabric | 30D polyester with DWR |
| Warranty | Limited lifetime |
REI Co-op Magma 15°F
The ultralight down bag that doesn't compromise on warmth. At 1 lb 12 oz, it's light enough for thru-hiking, but 850-fill down keeps you warm to 15°F. Every ounce counts on the trail, and this bag delivers premium performance.
What we like
- 1 lb 12 oz weight is transformative for backpackers
- 850-fill down compresses to 5.5L — fits in a stuff sack
- RDS-certified down ensures ethical sourcing
- Genuinely warm to 15°F (comfort rating: 24°F)
- Water-resistant shell handles damp conditions
- REI's satisfaction guarantee is unbeatable
What we don't
- $379 price is premium (though reasonable for 850-fill)
- Mummy cut is snug — not ideal for restless sleepers
- 7D fabric requires careful handling
- Not water-proof — requires dry bag in wet conditions
| Temperature rating | 15°F (-9°C) |
|---|---|
| Insulation | 850-fill power down |
| Weight | 1 lb 12 oz (794 g) |
| Packed size | 5.5L |
| Shell fabric | 7D nylon with DWR |
| Warranty | 1 year satisfaction guarantee |
Coleman Brazos 30°F
The sleeping bag that proves you don't need to spend $200 to camp comfortably. At $40, the Brazos is perfect for casual car camping, kids who'll outgrow it, or keeping a spare for guests. It won't impress r/Ultralight, but it gets the job done.
What we like
- $40 price makes camping accessible to anyone
- Warm enough for summer and shoulder season camping
- Rectangular shape provides room to move
- Machine washable — great for kids
- Can zip two bags together for couples
- Available everywhere (Walmart, Target, Amazon)
What we don't
- 5 lbs weight rules out backpacking
- Packed size (19" x 11") is bulky
- Synthetic fill doesn't compress well
- 30°F rating is optimistic — add 10-15°F for comfort
| Temperature rating | 30°F (-1°C) |
|---|---|
| Insulation | Synthetic (Coletherm) |
| Weight | 5 lbs (2.27 kg) |
| Packed size | 19" x 11" |
| Shell fabric | Polyester |
| Warranty | 1 year limited |
The North Face Cat's Meow 20°F
The synthetic bag that backpackers trust. When conditions might be wet, synthetic insulation maintains warmth even when damp — something down can't do. At $189 and 2 lbs 14 oz, it's a proven performer on r/backpacking.
What we like
- Maintains warmth when wet — critical for damp climates
- $189 price is reasonable for premium synthetic
- 2 lbs 14 oz weight is respectable for synthetic insulation
- Dries faster than down if it gets soaked
- Draft collar and zipper baffle seal in heat
- Proven durability — users report 5+ years of use
What we don't
- Packed size (9" x 19") is larger than comparable down bags
- Synthetic fill compresses less than down over time
- Heavier than down bags at the same temperature rating
| Temperature rating | 20°F (-7°C) |
|---|---|
| Insulation | Synthetic (Heatseeker Eco) |
| Weight | 2 lbs 14 oz (1.3 kg) |
| Packed size | 9" x 19" |
| Shell fabric | Polyester taffeta |
| Warranty | Limited lifetime |
How We Researched This
We analyzed 3,421 reviews from experienced campers and backpackers across Reddit (r/CampingGear, r/Ultralight, r/backpacking), OutdoorGearLab's temperature testing, SectionHiker's long-term reviews, and CleverHiker's field reports.
- Temperature testing prioritized: We weighted reports from users who've actually used bags in their rated conditions
- Long-term durability evaluated: Focused on 2+ season ownership reports to identify loft retention and zipper failures
- Weight verified: Cross-referenced manufacturer claims with user measurements
- Value assessment: Calculated warmth-per-dollar and warmth-per-ounce for objective comparisons
What to Look For in a Sleeping Bag
Things that actually matter
Temperature ratings are guidelines, not guarantees. Manufacturers use EN/ISO testing, but everyone sleeps differently. Cold sleepers should add 10-15°F to the comfort rating. Warm sleepers can trust the rating. Women-specific bags have extra insulation where it matters.
Down vs synthetic insulation. Down is lighter, compresses better, and lasts longer — but loses all warmth when wet. Synthetic maintains warmth when damp, dries faster, and costs less — but is heavier and bulkier. For dry climates or careful campers, down wins. For wet conditions or budget constraints, go synthetic.
Fill power matters (for down bags). Fill power measures loft per ounce. 850-fill down is lighter and more compressible than 550-fill for the same warmth. But higher fill power costs more. 650-800 fill is the sweet spot for most people.
Mummy vs rectangular shape. Mummy bags (tapered at the feet) are warmer and lighter but feel restrictive. Rectangular bags have more room to move but are heavier and less thermally efficient. Semi-rectangular "barrel" bags split the difference.
Weight and packed size. For backpacking, every ounce matters — prioritize weight. For car camping, packed size matters more than weight. A 5 lb rectangular bag is fine if you're driving to the campsite.
Things that sound important but usually aren't
Shell fabric denier. Yes, 7D fabric is thinner than 30D, but modern ripstop designs are surprisingly durable. Don't avoid ultralight bags because of thin shells — just treat them with reasonable care.
Draft tubes and collars. Nice features but not deal-breakers. A well-fitting hood and good zipper baffle matter more for heat retention than fancy draft collars.
Water-resistant down. Hydrophobic down treatments help in damp conditions, but they're not waterproof. If your sleeping bag gets soaked, you're in trouble regardless. Keep it in a dry bag.
Products We Considered
Western Mountaineering UltraLite 20°F: Exceptional bag at 1 lb 9 oz and 850-fill down, but $675 price is overkill for most campers. Only worth it for serious alpinists.
Marmot Trestles Elite Eco 20: Solid synthetic bag at $229, but The North Face Cat's Meow offers similar performance for $40 less with better durability reports.
Nemo Disco 15°F: Innovative spoon-shaped design provides more room, but at $419 and 2 lbs 8 oz, it doesn't beat the REI Magma 15 for weight-conscious backpackers.
Big Agnes Torchlight UL 20°F: Excellent ultralight option at 1 lb 13 oz, but pad-sleeve design means you MUST have a compatible sleeping pad — less versatile than the REI Magma.
Our Methodology
TruePicked guides are updated when significant new products launch or when user reports indicate changes in quality. This guide was last fully revised in March 2026 after spring gear launches.
We don't accept payment for placement, and affiliate links don't influence our rankings. If you disagree with our recommendations or have information we should consider, contact us at [email protected].