Naturehike
Naturehike Cicada Wing CW400 Square Down Sleeping Bag (2026)
Rectangular
Get it · L
Live stockSame-day pickup, during store hours, at a store that has it. Choose pickup or delivery at checkout.
14-day returns, any store
Common questions
Borderline fittersA person of average build, in base layers, on an insulated pad, sleeps through the night without feeling cold at 6 °C. The limit (1 °C) is where you can still sleep curled up. The extreme figure (−14.3 °C) is a survival number, not a buying guide.
For early-October nights in southern Ontario, pair it with an insulated pad and the CW400 covers most people. Cold sleeper? Step up to the Snow Petrel SP550 or add a liner.
Room to move your shoulders and arms, warmth trapped around your feet. It is the shape for people who find mummy bags claustrophobic but still want a bag that packs small.
Not in a normal cycle. Spot-clean the shell; for a full wash use down detergent on gentle and tumble dry low with tennis balls. A liner keeps the inside clean between washes.
About
Naturehike Cicada Wing CW400 Square Down Sleeping Bag (2026)
A lightweight down bag for September and shoulder-season camping in Ontario: 400 g of 650-fill duck down in a square-top, mummy-foot shape, so your shoulders have room and your feet stay warm.
Key facts
- Comfort 6 °C, limit 1 °C, extreme −14.3 °C
- 650FP duck down, 400 g fill
- M: 210 × 75 cm, 0.76 kg, packs 16 × 16 × 35 cm
- L: 220 × 85 cm, 0.89 kg, packs 18 × 18 × 35 cm
- 400T 20D ripstop nylon shell
Why this one
- Half the weight and a third of the bulk of a cotton bag with the same rating: it fits a backpack or a kayak, not just a trunk.
- Square top for side sleepers, mummy foot for warmth.
- Spec for spec it matches down bags that cost far more.
Good to know
Down is not machine-washable: spot-clean and sleep in our stretch liner. Take the L if you are over about 180 cm. For early-October nights pair it with an insulated pad; cold sleepers step up to the Snow Petrel SP550.
The numbers
Ride feel and construction, then the numbers for the length you pick
Temperature & season
Fill & construction
Zips & care
| Size | ||
|---|---|---|
| Weight | 885 g | 760 g |
| Packed Size (cm) | Ø18 × 35 cm | Ø18 × 35 cm |
Complete the setup
2 pieces · sleeping bag + sleeping bag
Sizes are the ones in stock today; swap any of them on its product page.
Questions
Asked in store, answered by our fitters
What does "comfort 6 °C" actually mean?
A person of average build, in base layers, on an insulated pad, sleeps through the night without feeling cold at 6 °C. The limit (1 °C) is where you can still sleep curled up. The extreme figure (−14.3 °C) is a survival number, not a buying guide.
Is it warm enough for Thanksgiving weekend?
For early-October nights in southern Ontario, pair it with an insulated pad and the CW400 covers most people. Cold sleeper? Step up to the Snow Petrel SP550 or add a liner.
Why the square top and the mummy foot?
Room to move your shoulders and arms, warmth trapped around your feet. It is the shape for people who find mummy bags claustrophobic but still want a bag that packs small.
Can I wash it?
Not in a normal cycle. Spot-clean the shell; for a full wash use down detergent on gentle and tumble dry low with tennis balls. A liner keeps the inside clean between washes.
I'm 6'2" — which size?
L is 220 × 85 cm. M (210 × 75 cm) suits people up to about 180 cm.
How does it compare with a cotton bag?
A cotton bag with the same comfort rating weighs about twice as much and packs three times bigger. The CW400 is 0.76 kg in M and packs to Ø18 × 35 cm, so it goes in a backpack or a kayak, not just a trunk. What you give up is machine washing.