Natural-fiber gear for backpacking, camp & cold nights
The Rewilder wool sleeping bag: 4 lb, 20°F, non-toxic.
A true lightweight, natural fiber sleeping bag for backpacking: US wool batting, beeswax-treated organic cotton shell, merino lining. Warm when damp, breathable, quiet — cut and sewn in the USA.
- 4 lb / 1.8 kg
- 20°F / −6°C · 10°F option
- Packs to 11 × 11 in
★ 5.0 Google rating · Lifetime workmanship guarantee · Ships in 2–5 days

- Lifetime workmanship guaranteeWe repair or replace defects. Period.
- US-raised, US-milled woolWeatherWool® & merino from American flocks.
- Ships in 2–5 daysFrom Burnsville, NC. International available.
- Free swatch packFeel the materials before you buy.
Why natural fibers perform
Wool, cotton and beeswax have kept people warm and dry for millennia. We just engineered them for a pack.
Warm when damp
Wool keeps insulating at 30 % moisture. Down doesn’t.
Breathes, never clammy
No membranes, no coatings. Vapour moves out; you stay dry.
Regulates temperature
Fewer 3 a.m. wake-ups sweating or shivering as the night shifts.
Zero plastic, zero PFAS
No synthetic fibers, no DWR, no foam. Nothing to off-gas in your face all night.
Built for decades
Repairable, re-waxable, and guaranteed for workmanship for life.
Field-tested favourites
Yes, it’s heavier than down. Here’s what the extra ounces buy.
| 20°F sleep system | The Rewilder (wool) | Typical down quilt | Typical synthetic bag |
|---|---|---|---|
| Weight | 4 lb / 1.8 kg | 1.3 – 1.5 lb | ~3 lb |
| Packed size | 11 × 11 in | volleyball | ~9 × 15 in |
| Warm when wet | Yes — keeps insulating damp | No | Partly |
| Breathability | High — no membranes or coatings | Low | Low |
| Noise | Silent | Crinkly nylon | Crinkly nylon |
| Plastic content | None | Shell + often fill | All of it |
| Repairable & re-waxable | Yes | Rarely | No |
| Guarantee | Lifetime workmanship | Varies | Varies |
Down/synthetic figures are ranges from 2026 independent 20°F sleeping-bag tests (1.3–3.0 lb field). The Rewilder is about three times the weight of the lightest down quilts — and the only one on the table with nothing synthetic in it.
Gram-aware, not gram-obsessed. See the full spec sheet
From the field
Hands down the most comfortable sleeping bag I’ve ever used. In the backpacking world you typically have two options, down or synthetic. Now there’s wool — and it finally fits in a backpack. Your compromise is added weight, but every ounce is worth it when your sleep improves so dramatically. Climb in wet, wake up dry.Chris Holmes · The Rewilder
Lightweight enough for backpacking. If you have cold feet, they’ll warm up a lot faster than even lower-temperature-rated down bags. Absolutely one of the best investments I have ever made.Jason Stoher · The Rewilder
At 8,000 ft the temperature dropped below freezing and we got a powerful rain storm. Much of my clothing was wet. I was still able to stay warm and cozy even in the worst of conditions.Keven Anderson · The Rewilder
Fall backpacking, sorted
Cold mornings, wet afternoons, long nights. One natural-fiber kit that handles all three.
- Sleep — The Rewilder 20°F · 4 lb · from $557
- Carry — Lightweight organic canvas backpack · 65 L · 32 oz · $350
- Shell — Waxed canvas rain jacket · breathes, PFAS-free · $525
- Layer — Merino wool buff · $32
What it’s made of
WeatherWool® & merino batting
Warm at 30 % moisture, no cold spots — batting, not baffles. US-raised, US-milled.
Beeswax-treated organic cotton
Wind- and rain-resistant without DWR or coatings. Re-wax it yourself with Trail Wax.
Brass hardware, cotton thread
No plastic buckles to snap at −10°. Everything can be repaired.
Sleeping bags and bedrolls are cut and sewn in the USA from US wool. Read the materials guide
The field guide
Wool vs down: which sleeping bag is warmer when wet?
Loft, moisture and the night you actually get — not the spec sheet.
MaterialsHow wool keeps you warm — the heat of adsorption
Why damp wool releases heat instead of stealing it.
Non-toxic gearWhat “PFAS-free” does and doesn’t mean
Coatings, flame retardants and microplastics — what’s actually in most gear.
Rewild your adventures.
New from the field guide: sleeping warm outdoors, the science of wool, non-toxic gear, shelter craft and rewilding practice — plus first word on new gear and restocks.
No spam, no selling your address. Unsubscribe any time.











