The Best Wool Blankets for Camping: Why They Work and How to Choose
· Updated
A good wool blanket is one of the few bits of camping kit that has barely changed in a hundred years, because it still does the job better than most of the modern alternatives. It keeps you warm when it is damp, it breathes so you do not wake up clammy, it shrugs off sparks from the fire, and it lasts for decades. For car camping, campervans and cool British evenings, it is hard to beat.
The catch is weight. Wool is heavy, so a blanket is not a backpacking item. If you are pitching next to the car, though, that weight buys you warmth and durability that a lightweight synthetic throw cannot match. This guide is part of the complete UK camping gear guide from Camping Sites in Britain, where you can find and compare campsites, caravan parks and glamping across the country.
Why wool works outdoors
Wool earns its place because it performs when conditions turn against you. A synthetic throw is warmer for its weight in a dry tent, but wool holds its own the moment moisture, condensation or a stray ember enters the picture, which on a British campsite is most nights.
It stays warm when damp. Wool fibres are crimped and hollow, so they trap air even after they have soaked up moisture. A wool blanket can hold roughly a third of its own weight in water and still feel warm against you, which is why it has been army bedding for generations. Cotton, by contrast, chills you the instant it gets wet.
It breathes. Wool wicks water vapour away from your body and releases it, so you avoid the clammy, sweaty feeling you get inside a sealed synthetic bag. That same breathability regulates temperature, taking the edge off a cold night without overheating you if the tent warms up by morning.
It is naturally flame-resistant. Wool has a high ignition point and does not melt, drip or stick to skin the way nylon and fleece do. It is self-extinguishing, so a spark from the campfire tends to leave a small singe rather than a burnt hole, and the blanket will not go up if an ember lands on it. That makes it the sensible choice for wrapping round your shoulders by the fire. It is flame-resistant, not fireproof, so common sense still applies.
It is hard-wearing. Wool fibres flex tens of thousands of times before they break, so a well-made blanket takes years of dragging across grass, sitting on gravel and stuffing into the boot without falling apart. A decent one will outlast several synthetic throws.
Pure wool versus blends
Pure new wool gives you the best warmth, breathability and flame resistance, but a good blend can be a sensible compromise on price and washability. What you are really buying is the percentage of actual wool in the cloth, so it pays to read the label rather than the marketing.
- Pure new wool (100 percent). The warmest and most naturally flame-resistant option, and the one that handles damp best. It is also the most expensive and needs gentle washing.
- Wool blends (often 50 to 80 percent wool). Usually mixed with polyester or acrylic to cut cost, add a little stretch and make machine washing easier. You lose some warmth and fire resistance as the synthetic content climbs, so a blend below about 50 percent wool starts to behave more like a synthetic throw.
- Recycled or reclaimed wool. Common on budget blankets. Perfectly serviceable for picnics and the car, though the shorter recycled fibres shed more and are a touch less hard-wearing.
As a rule, "virgin" or "new" wool means long, unused fibres and a better blanket. Merino is simply a fine, soft type of wool that feels far kinder against bare skin than a coarse grey army blanket, which matters if you plan to use it as bedding rather than a groundsheet.
Weight and warmth
Heavier usually means warmer, and for camping that trade is normally worth making. Because you are not carrying it far, a dense blanket that would be absurd in a rucksack is exactly what you want beside the car.
| Type | Rough weight | Warmth | Best for |
|---|---|---|---|
| Military-surplus wool blanket | 1.8 to 2.5 kg | Very warm | Cold nights, fireside, groundsheet duty |
| British-made pure wool blanket | 1.5 to 2.2 kg | Very warm | Bedding layer, campervans, home use too |
| Merino throw | 1 to 1.5 kg | Warm and soft | Wrapping up, next-to-skin comfort |
| Wool blend blanket | 1 to 1.8 kg | Moderate | Picnics, budget kit, easy washing |
Cloth weight is often quoted in grams per square metre (GSM). A proper camping blanket sits around 400 to 600 GSM or more; anything much lighter is really a decorative throw and will not do much on a cold night. If you feel the cold, layer a wool blanket over your sleeping bag rather than hunting for one thick blanket to do everything.
How to use a wool blanket when camping
The reason a wool blanket is worth the boot space is that it does several jobs, not one. Most campers end up using theirs three ways.
- Over a sleeping bag for extra warmth. Draped on top, a wool blanket adds a genuine layer of insulation and pushes a summer-rated bag into cooler conditions. It also catches condensation dripping off the inner tent before it reaches your bag. Pair it with a decent mat, because most heat is lost downwards into the ground.
- A picnic and ground rug. Tough, warm to sit on and unbothered by a bit of damp grass, wool is far better underneath you than a thin synthetic sheet. Spread it out for lunch, then shake it off and it is ready for the tent again.
- Round the shoulders by the fire. This is where wool truly earns its keep. Because it resists sparks and will not melt, you can sit close to the flames wrapped up without ruining it, which you cannot safely do with a fleece.
For more on holding heat once the sun goes down, see our guide to how to stay warm sleeping under the stars, and if you are building a proper cold-weather sleep system, pair the blanket with a good sleeping mat and warm thermal clothing.
Military surplus versus British-made
Both are good buys, and the right one depends on whether you want a rugged workhorse or a blanket you would also use at home. They sit at opposite ends of the same idea: warmth from real wool that lasts.
Military-surplus blankets are the classic cheap route to a genuine heavyweight wool blanket. Ex-British Army, Swiss, Italian and Dutch surplus blankets turn up regularly, usually in grey, olive or brown, and are typically a high wool blend built to be indestructible rather than soft. Genuine surplus can be scratchy and may carry a faint storage smell that airs out, and quality varies between lots, so buy from a seller who states the wool content. For fireside use and groundsheet duty they are brilliant value.
British-made blankets cost more but give you a softer, better-finished blanket that looks at home on the sofa as well as in the tent. British woollen mills such as Melin Tregwynt in Pembrokeshire, Atlantic Blankets in Cornwall and Tweedmill in North Wales make pure new wool blankets, and traditional Welsh tapestry and Herdwick wool blankets from the Lake District are proper heritage kit. Look for the British Wool mark if you want to back home fleece. We are not quoting prices here because they move around, but expect to pay a clear premium over surplus for the softness and finish.
Caring for a wool blanket
The single most important rule is to keep wool away from heat and agitation, because that is what shrinks and felts it. Hot water and a fast spin will turn a lovely blanket into a stiff, shrunken board, and there is no undoing it.
- Do not machine wash hot. If a blend label allows it, use a cool wool cycle with a low spin and a wool-safe detergent. When in doubt, do not risk it in the machine at all.
- Spot clean and air first. Most of the time a wool blanket only needs shaking out and hanging over a line to freshen, because wool naturally resists odours. Dab spills with cool water and a little wool wash rather than scrubbing.
- Hand wash when it genuinely needs it. Use cool or lukewarm water, press the suds through gently without wringing, then rinse in water of the same temperature. Sudden temperature changes are what cause shrinkage.
- Never use bleach or a hot tumble dryer. Squeeze out excess water, roll in a towel to blot, then dry flat and away from direct heat to hold the shape.
- Store it dry. Make sure it is fully aired before folding it away, and keep it somewhere breathable with a cedar block or lavender to deter moths.
You can find sites that suit heavier kit and cooler-season trips across our UK campsite listings, from open pitches to sheltered woodland spots.
Frequently asked questions
Is a wool blanket warm enough for camping on its own?
On a mild night, yes. In colder conditions, use it alongside a sleeping bag rather than instead of one. A wool blanket layered over a bag adds real warmth, but a single blanket on cold ground will not keep most people comfortable through a British spring or autumn night.
Can you put a wool blanket near a campfire?
Yes, and that is one of its main advantages. Wool is naturally flame-resistant and does not melt, so a stray spark tends to singe rather than burn a hole. It is flame-resistant, not fireproof, so do not lay it in the flames or leave it unattended near the fire.
What is the best wool content to look for?
Pure new wool (100 percent) is warmest and most flame-resistant. A blend of 50 to 80 percent wool is a fair compromise that washes more easily. Below about 50 percent wool, a blanket behaves more like a synthetic throw and loses much of the benefit.
How do you wash a wool camping blanket?
Wash it as little as possible. Shake it out and air it after most trips. When it genuinely needs cleaning, hand wash in cool water with a wool detergent, avoid wringing, and dry it flat. Never wash hot or tumble dry hot, as heat shrinks and felts wool.
Are military-surplus wool blankets any good for camping?
They are excellent value for warmth and durability. Genuine army surplus blankets are heavy, hard-wearing and largely wool, ideal for fireside use and as a groundsheet. They can feel scratchy and quality varies, so buy from a seller who states the wool percentage.
Merino or a standard wool blanket for camping?
Choose merino if you want softness against bare skin as bedding, and a coarser standard or surplus wool blanket if you want maximum toughness and value for fireside and ground use. Merino is finer and kinder to the skin but usually lighter and pricier.
The short version
A wool blanket stays warm when damp, breathes, resists fire and lasts for years, which makes it a brilliant bit of car-camping kit even though it is too heavy for the trail. Buy on wool content, go military surplus for cheap toughness or British-made for softness, and wash it cool and rarely. Ready to plan a trip? Browse our UK campsite listings or read the complete UK camping gear guide.
