Wool Blanket vs Sleeping Bag – H2H Across 7 Aspects

By Emma
wool blanket vs sleeping bag

This is the ultimate head to head comparison of wool blanket vs sleeping bag.

Camping is a gear-heavy hobby, so it’s always convenient when you already have something you’ll need in your tent. Wool blankets are a common household item that will be convenient to bring—but will they keep you warm and snug while camping?

Wool blankets are a common way to stay warm in all seasons, as they’re great at keeping moisture at bay, and they’re comfortable. However, sleeping bags are warmer, lighter, and more cost-effective.

There’s a lot to cover here, so I’m calling on my experiences and research skills to provide you with a detailed evaluation of both items.

FeatureWool BlanketSleeping Bag
WeightHeavierRanges from a little lighter to ultralight
ComfortEmulates a bed situation; adds no comfort to sleeping padsAdds more comfort to sleeping pads
WarmthOften used for keeping cool; decent warmthExcellent warmth
VersatilityCan be used in many scenariosDepends on the bag; slightly less versatile than blankets
Packed SizeBulkyCompact
ProtectionHighly fire and water-resistant; may attract bugsGood water and fire resistance; won’t attract bugs
PriceUsually more expensiveUsually more affordable

Wool Blanket vs Sleeping Bag Overview

There are lots of types of sleeping bags, and I’m focusing mainly on mummy bags as they offer the most warmth. Let’s compare them directly to wool blankets and see what points stand out.

Wool Blanket

Wool blankets have been used for comfort and warmth for decades. They’re typically made of sheep’s wool woven into thick yarn. 

They’re natural, very cozy, and are lighter weight than thicker quilts, but they’re heavy in terms of adding them to your pack.

That said, they’re often worth the extra weight, as they’re great at keeping you warm and dry when a sleeping bag gets sodden with prolonged use.

These versatile blankets can be used during the day or at night, and they come in many different shapes and sizes to suit anyone’s needs.

Sleeping Bag

Sleeping bags are more popular nowadays, and there are many different types of them. Some of these types include:

  • Mummy bags
  • Rectangular bags
  • Hybrid bags
  • Sleeping pods

And of course, there’s always the synthetic vs down argument.

Sleeping bags are better for being lightweight and keeping you warm, although they don’t have the same cozy feeling that a wool blanket brings. They’re also not as versatile, but they’re truly the best for cold weather camping.

Wool Blanket vs Sleeping Bag Weight

Winner: Sleeping bags

Wool blankets are heavier than sleeping bags, so you’ll want to factor that into your choice.

Weight doesn’t always matter, but it comes into play if you have to carry your pack for any length of time. Backpackers and walk-in campers need something light. Car campers don’t need to worry about weight.

Let’s directly compare products for weight comparison purposes:

The wool blanket is heavier, and that weight difference will only increase if you consider a larger, thicker blanket vs an ultralight sleeping bag for backpacking.

Wool Blanket vs Sleeping Bag Comfort

Winner: It’s a tie

Comfort is subjective, so there’s no real winner out of these two—it’s a factor that’s highly up to preference.

Sleeping bags add more cushioning underneath you, but wool blankets go on top of you, so they add no comfort to your sleeping surface.

Wool blankets are great to use with camping cots and thick sleeping pads, though; they help you feel like you’re sleeping in a real bed due to their quilt-like nature.

A lot of people prefer wool blankets for nostalgia and romanticization purposes, but I wouldn’t recommend basing your choice solely on that.

Wool Blanket vs Sleeping Bag Warmth

Winner: Sleeping bags

Sleeping bags are always the warmer choice due to their material and construction.

Sleeping bags are closed, so there’s no cold air around the sides or bottom. Mummy bags have hoods, too, and they’re tightly fitted to your legs to minimize airflow.

Their materials are closed and usually synthetic, but down bags are also very much closed off and not airy. They don’t allow much breathability.

Wool is breathable, so you’ll always be cooler with a wool blanket. The blanket can lift and shift as you move, too, letting cold air at your body from all angles.

People often use wool blankets to stay cool while sleeping in summer, so keep that in mind when making your choice.

Wool Blanket vs Sleeping Bag Versatility

Winner: Wool blankets

Wool blankets can be used as a blanket, sun and wind shelter, a picnic blanket, something to make the floor warmer when sitting during the day, and more.

It’s much harder to do this with a sleeping bag. 

Mummy bags can only be used as sleeping bags, and rectangular bags can be unzipped fully and used as blankets, but it’s more convenient to use a wool blanket. They’re already unzipped and they don’t require re-zipping before your next use.

Wool Blanket vs Sleeping Bag Packed Size

Winner: Sleeping bags

Wool blankets can only be folded or rolled up for transport, and they’re often thick, so they can’t compress into a small packed size. The larger the blanket, then the larger its packed size will be.

Sleeping bags can roll up very small, and they compress well.

Let’s go back to the products from earlier and compare them. The sleeping bag folds up into a 15 by 11-inch package.

The blanket is 660 by 90 inches, and let’s say you can fold it in half three times. It’s going to be 20 by 30 inches, and those dimensions won’t change much if you roll it up.

Wool Blanket vs Sleeping Bag Protection

Winner: Wool blankets

Wool blankets have more protective qualities than sleeping bags. Both wool blankets and sleeping bags have some fire and water resistance, but wool blankets have more.

Wool blankets wick moisture, so they feel cold rather than wet. If a sleeping bag gets wet, then it feels soggy and unpleasant, and it takes much longer to dry due to the abundance of material in it.

Wool blankets are also fire resistant to prevent flames from spreading.

You’re safer from hazards and the elements in a wool blanket. however, you’re not safer from bed bugs.

Bed bugs lurk in natural materials such as wool blankets, but you’ll rarely have bed bugs in sleeping bags. Bed bugs can attract other insects, making wool blankets a poor choice for insect-infested areas.

Wool Blanket vs Sleeping Bag Price

Winner: Sleeping bags

Sleeping bags are far more affordable than wool blankets. The products I mentioned earlier have similar prices, but even so, the wool blanket was pricier.

Of course, there are incredibly cheap and very expensive versions of both products available. Cheaper versions of items often won’t be the best, so let’s directly compare two popular brands: rei for camping goods, and Woolrich for wool blankets.

For Rei, $100–200 is a common price point. There are a few outliers over $200, and a handful cost over $300. Even fewer cost over $400. Most campers will find one in the $100–$200 range perfectly adequate for their needs.

There are some sleeping bags that are under $100, too, and they’ll keep you warm on a budget.

High-quality Woolrich blankets start at over $100, and they’re all thin and inappropriate for camping. Thicker blankets that are appropriate for camping can climb into the $600–$700 range. The most affordable blankets are throws that are only suitable for indoor use.

There are some wool blankets that are more cost-effective and designed for outdoor use, but they’re not 100% wool. Blankets that are 100% wool often last longer, and they’re more fire-resistant than wool blends. This is the kind of blanket serious campers will want.

Do I Need a Sleeping Pad With a Wool Blanket or Sleeping Bag?

You don’t need a sleeping pad with a sleeping bag, as you already have a well-insulated and comfortable bottom. However, it’s still recommended that you use one. 

You do need a sleeping pad with a wool blanket, as otherwise, you’ll be sleeping on the cold, hard ground.

You can read more about the benefits of sleeping pads in this article answering the question, “do you need a sleeping pad for camping?”

Generally, you’ll always find that a sleeping pad is a good idea while you’re camping, especially when you’re forgoing a sleeping bag. Sleeping with a wool blanket and no sleeping bag will leave you cold and uncomfortable.

How to Choose a Wool Blanket

Choosing a wool blanket isn’t simple. You can walk into any home furnishing store and see a wool blanket, but it won’t always be great for staying warm. Many of the ones you’ll find are only good as throws or decorative blankets.

There are three factors to consider if you want to stay warm with a wool blanket on a camping trip.

Go Hypoallergenic

Wool can sometimes cause irritation and allergic reactions, but there are many hypoallergenic wool blankets out there for you to use if this happens to you.

Wool isn’t a common allergen, but it’s still a good idea to find a product that explicitly states that it’s hypoallergenic.

Look for a Light One

If you’re set on using a wool blanket for warmth, then it’s best to use one in spring or summer. Look for a blanket that’s not too thick, and one that’s lightweight works best. A lightweight blanket is not only easier to transport, but it’s also simpler to store.

You don’t need to spend a ton on those thicker, warmer blankets, as you can achieve great results with a lighter one if you use it in warmer seasons.

Merino Wool is Best

If you’re going to choose a wool blanket, then make it a merino wool one. Merino wool is usually hypoallergenic, often lightweight, and it always helps regulate temperature.

Merino wool blankets wick sweat when you’re hot and insulate you when you’re cold. They help keep your body temperature comfortable regardless of the weather conditions, so it’s always a good idea to choose this kind of wool when buying any wool clothing or gear.

How to Choose a Sleeping Bag

Choosing a sleeping bag is a little more involved than choosing a blanket, but I’m going to clue you in on what kind is best for what situation.

Select Which Type You Want

There are two decisions to make here: mummy vs rectangular and synthetic vs down.

Mummy bags are warmer and more compact, and rectangular bags offer more wriggle room while allowing more room for cold airflow. Rectangular bags are better for people who dislike being constrained, and they’re great for spring and summer use. 

Cold weather campers should always use a mummy bag when possible; and here’s a resource for even more cold weather camping tips.

As for synthetic vs down, it’s a matter of what your priorities are. 

They both keep you warm, but down is more expensive. However, down sleeping bags are also lighter and pack up smaller than synthetic bags. If you value affordability over compactness, choose synthetic, and vice versa.

Evaluate the Weather

Know what season you’re going to camp in most before you choose your bag. 

Are you exclusively a summer camper? A rectangular bag marked for warm weather camping is a good choice.

Will you be camping more in cold weather? Then you’re going to need a warmer bag, like a mummy bag, and make sure you choose one with a decent temperature rating. I recommend a 20° bag as they work well in cold and hot weather alike.

Ensure It’s Convenient

Make sure your sleeping bag is light and compact enough for you if you’re a backpacker or walk-in camper. Car campers can choose bags of any size and weight, as heavier bags won’t be inconvenient.

Finding a bag that works for you is vital, as you’ll feel more comfortable with a bag that isn’t a burden.

The Winner

Sleeping bags are clearly the winner in most situations, but wool blankets can be good for warm weather camping. You could also pair a blanket and a sleeping bag if you’d like.

Preference should always factor in too, of course, but keep the benefits and disadvantages of both pieces of gear in mind. I recommend sleeping bags for almost all situations, but there’s nothing wrong with choosing a wool blanket if it works better for you.

Founder Headshot

My name is Emma, and I’m a city dweller who jumps on every opportunity to get out and enjoy nature! I’ve gone on a number of car camping and backpacking trips over the past few years. I created this site to inspire others to get outside and to make the process easier for you.