Gear / Sleeping bags

Best Sleeping Bags for Backpacking

You only need a sleeping bag if you're camping or staying in unheated shelters. In Alpine huts, a light liner is enough. For camping, choose a bag rated a few degrees colder than the coldest night you expect, and remember that temperature ratings assume you're on a good sleeping mat.

Budget, mid-range and premium picks, including cheaper options from Decathlon. Prices are US list prices and weights are manufacturer figures, checked September 2026. Retail prices change often. If you buy through our links we may earn a commission, at no extra cost to you. How this works.

At a glance

ProductPrice (USD)WeightRatingBest for
NEMO Disco 15Barnaby's pick $200 1.10 kg · 2.4 lb 15°F / -9°C Side sleepers
Kelty Cosmic Down 20Best value $160 1.10 kg · 2.4 lb 20°F / -7°C Down on a budget
Sea to Summit Spark $349 — Several ratings Ultralight
Forclaz (Decathlon) MT500 0°CBest budget £80 (UK) 1.45 kg · 3.2 lb 0°C / 32°F Budget camping
Forclaz (Decathlon) MT900 10°C Down $149 — 10°C / 50°F Warm summer nights
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NEMO

Disco 15

Barnaby's pickMid-range

Price
$200
Weight
1.10 kg · 2.4 lb
Rating
15°F / -9°C

A roomy spoon-shaped down bag that lets you bend your knees. Reviewers rate it among the most comfortable bags available.

Why hikers love it

  • Roomy shape for side sleepers
  • Thermo Gills vents to cool off
  • Warm for the price

Good to know

  • Heavier than slim mummy bags
  • Packs a little bigger than premium down

Check price at REICheck price at Amazon

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Kelty

Cosmic Down 20

Best valueMid-range

Price
$160
Weight
1.10 kg · 2.4 lb
Rating
20°F / -7°C

One of the best-value down bags available, with 550-fill down and a simple, proven design.

Why hikers love it

  • Great price for a down bag
  • Warm and comfortable
  • Easy to find in stores

Good to know

  • Bulkier than high-fill down
  • Recent versions weigh a little more

Check price at REICheck price at Amazon

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Sea to Summit

Spark

Premium

Price
$349
Weight
—
Rating
Several ratings

An ultralight 850-fill down bag available in several temperature ratings. Prices start around $349.

Why hikers love it

  • Very light and packable
  • Premium 850-fill hydrophobic down
  • Great for fast, light trips

Good to know

  • Slim fit leaves little room to move
  • Premium price

Check price at REICheck price at Amazon

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Forclaz (Decathlon)

MT500 0°C

Best budgetBudget

Price
£80 (UK)
Weight
1.45 kg · 3.2 lb
Rating
0°C / 32°F

A budget trekking bag priced at £80 in the UK. Heavier than down, but a solid start for summer camping.

Why hikers love it

  • Very affordable
  • Warm enough for most summer camping
  • Easy to care for

Good to know

  • Heavy and bulky compared with down
  • Not for cold shoulder seasons

Check price at Decathlon

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Forclaz (Decathlon)

MT900 10°C Down

Mid-range

Price
$149
Weight
—
Rating
10°C / 50°F

A light down bag for warm summer nights and huts without blankets, at $149.

Why hikers love it

  • Light and packable down
  • Good price for down
  • Ideal for summer treks

Good to know

  • Only for mild nights
  • Minimal features

Check price at Decathlon

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