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Our top-rated 3-season sleeping bags of 2025 – expert reviews for every camper

Designed for use from early spring right through to late autumn, a 3-season sleeping bag is the most popular and versatile camping companion for backpacking trips or wild camping adventures high in the hills. Here are our top picks.

Pictures of differnt 3-season sleeping bags being tested by LFTO
Sizes:Regular, Long, Long Wide, Women's
Packed size:35 x 23cm
Weight:775g
Insulation:400g of 800-fill RDS goose down w/ PFC-free Nikwax hydrophobic treatment
Materials:20D Pertex Quantum recycled nylon w/ PFC-free DWR
Temperature rating:-1°C comfort | -7°C comfort limit
Rab Neutrino 400
  • Not as light or packable as some rivals
    • Packed size
      3.0
    • Weight
      3.0
    • Features
      5.0
    • Performance
      4.0
    • Value
      3.0
    RRP:£280.50 / $299.95
    Sizes:Short, short wide, reg, reg wide, long and long wide
    Packed size:29 x 21cm
    Weight:1.02kg/2.2lb (short), 1.21kg/2.7lb (regular), 1.4kg/3lb (long), 1.27kg/2.8lb (short wide), 1.52kg/3.3lb (reg wide), 1.74kg/3.8lb (long wide)
    Insulation:650 FP hydrophobic, PFAS-free, RDS-certified duck down
    Materials:20D 100% recycled nylon ripstop
    Temperature rating:Comfort 0°C, limit -6°C
    Therm-a-rest Boost 650 -6 sleeping bag
  • Expensive at £450/$589
    • Packed size
      5.0
    • Weight
      5.0
    • Features
      3.0
    • Performance
      4.0
    • Value
      3.0
    RRP:£449.99 / $499.99
    Sizes:Regular, long
    Packed size:24x20cm
    Weight:700g / 1lb 8.7oz (reg), 779g / 1lb 11.5oz (long)
    Insulation:480g/540g of 850 fill power Downtek hydrophobic goose down (PFC-free)
    Materials:10D NetPlus 100% recycled ripstop nylon fabric (PFAS-free DWR)
    Temperature rating:Comfort 2°C | Limit -4°C
    Big Agnes Fly Creek UL25 sleeping bag