Camping is one of my favorite activities. Getting out in nature, cooking over a campfire, stargazing – what’s not to love? However, I learned the hard way that having the wrong camping sleeping bag can really put a damper on your outdoor experience.
Let me set the scene: It was mid-September and still quite warm during the day, so I didn’t think much about my old, thin summer sleeping bag when packing for a camping trip in northern Michigan. That night, temperatures dropped rapidly after sunset. I tossed and turned all night, shivering in my sleeping bag as cold air seeped in. Needless to say, I barely slept a wink and cut the trip short the next morning, exhausted and frozen.
After that miserable night, I vowed to never skimp on my sleeping bag quality again! The right sleeping bag for your camping conditions is one of the most important gear decisions you’ll make.
This guide will walk you through the key factors to consider when picking out the perfect camping sleeping bag for your needs. We’ll cover:
- Types of sleeping bag insulation and fill materials
- Important temperature ratings and seasonal recommendations
- Different sleeping bag shapes and sizes
- Extra features and components to look for
- My top sleeping bag recommendations across budgets
- Frequently asked questions on camping sleeping bags
Equipped with this advice, you’ll be able to confidently shop for a camping sleeping bag that you can count on to keep you warm, comfy, and well-rested on all of your outdoor overnight adventures. Time to go bag yourself a sleeping bag!
The Ins and Outs of Sleeping Bag Insulation
The insulation or fill material inside a camping sleeping bag plays a major role in its warmth and comfort. You’ll typically come across the following types of insulation when shopping around:
Down refers to the fine, fluffy feathers from ducks or geese that provide unbeatable warmth for their weight. Down insulation is known for being highly compressible, lightweight, and offering excellent warmth. The tradeoff is that down sleeping bags tend to be quite expensive and lose their insulating ability when wet.
Pros: Super warm and lightweight; packs down small
Cons: Expensive; useless when wet
Synthetic insulation is made from polyester fibers and designed to mimic down feathers. Synthetic fill offers good warmth for a more affordable price point compared to down. It also retains insulating ability when damp. However, synthetic sleeping bags are typically heavier and bulkier.
Pros: Dries quickly; cheaper price; retains warmth when wet
Cons: Heavier; less compressible; not as warm
Natural wool insulation comes from Merino sheep. It shares some similarities with down in terms of warmth, breathability, and compressibility. The major advantage of wool is that it retains most of its insulating ability even when wet. The downside is wool’s high cost and heavy weight.
Pros: Stays warm when wet; renewable; eco-friendly
Cons: Heavy; expensive
Some sleeping bags are insulated with cotton, often organic cotton. Cotton is breathable and comfortable. However, cotton is not very effective at retaining warmth, especially if it gets wet. Most camping sleeping bags avoid cotton fill for this reason.
Pros: Breathable; comfortable
Cons: Loses insulation when wet; heavy
When it comes to down, you may also see labels for goose down or duck down. Goose down is generally warmer and fluffier than duck down, but also pricier. Duck down works nearly as well for most camping needs. For vegans/vegetarians, synthetic and wool could be better ethical options over animal-sourced down.
Given the pros and cons, here are my top recommended fill types based on your budget and needs:
- Down – Best overall for warmth, lightweight, compression; ideal for backpacking or cold weather
- Synthetic – Great budget-friendly choice; good for wet conditions
- Wool – Excellent warmth when wet; eco-friendly/sustainable source
- Cotton – Only for warm weather camping; not ideal for most cases
Some top-rated sleeping bags using these various insulation materials:
- Down – Western Mountaineering MegaLite; Feathered Friends Eider; REI Co-op Magma 850
- Synthetic – Marmot Trestles Elite; Kelty Cosmic; Sierra Designs Backcountry Bed
- Wool – Kammok Koolaime; Western Mountaineering TerraLite; Pendleton Wooler
- Cotton – Sea to Summit BaseCamp; Kelty Tru.Comfort Doublewide; L.L.Bean Cotton Flannel
Choosing a Temperature Rating
One of the most important specifications to review when shopping for a camping sleeping bag is the temperature rating. This indicates the lowest temperature that the bag is designed to keep the average person warm.
How are temperature ratings determined? Manufacturers test bags in controlled environments on thermal mannequins to measure heat retention at different temps. Do not equate EN/ISO standardized ratings with survival or comfort ratings. The rating indicates the bag will protect against hypothermia for an average female. Adding layers and a sleeping pad can make the bag more comfortable at the rated temperature.
Sleeping bags are often categorized into season ratings based on their temperature range:
- Summer: +35°F and up
- 3-season: +10 to +35°F
- Winter: -10°F and under
However, avoid choosing solely by season name. The exact temp rating is more telling.
Popular temperature ratings for camping sleeping bags include:
- 40°F – For summer, warmer climates
- 20°F / 0°F – Three season use
- -10°F / -20°F – Colder weather and winter camping
I’d recommend choosing a bag with a rating at least 10°F colder than the lowest expected nighttime temps for your trip.
Factors besides insulation that affect warmth: draft collars, hoods, full zipper draft tubes, mummy shape, length, and more.
Get the Right Shape and Size
Sleeping bags come in different shapes, sizes, and spaciousness.
Mummy bags are tapered at the head and feet. This thermally efficient, minimally spacious shape is ideal for retaining body heat. Weights and packs down small.
Pros: Warm, lightweight, compressible
Cons: Snug fit not for everyone
Rectangular (also called envelope) sleeping bags offer roomy space to move around. More versatile for car camping and room sharing.
Pros: Roomy comfort, versatile uses
Cons: Less efficient warmth retention
Some double sleeping bags and kids’ sleeping bags are also more rectangular in shape.
To find your ideal size, measure your height and width needs. Consult manufacturer sizing charts. Also consider if you will use the bag solo or share it. Do you move around a lot when sleeping?
Here are my top picks for different sleeping bag shapes and use cases:
- Mummy – Therm-a-Rest Parsec 20; Western Mountaineering Badger; Big Agnes Hazel 15
- Rectangular – REI Co-op Siesta 30; Kelty Tru.Comfort Doublewide; Marmot Trestles Elite Eco
- Double – Big Agnes Dream Island 15; Sierra Designs Frontcountry Bed Queen; Kelty Trango Glide 4
Special Features to Look For
Draft collars seal in warmth around your neck and prevent cold spots. Make sure any mummy bag has one.
Zipper Draft Tubes
These insulated tubes behind the zipper prevent heat loss from airflow. Key for both mummy and rectangular bags.
Cinchable hoods add extra warmth and customization around your head and shoulders.
- Full zippers make ventilation control easy.
- Half zips save weight.
- Zipper draft tubes further prevent heat loss.
Interior stash pockets let you safely store small items and electronics inside your sleeping bag.
Exterior loops make gear attachment easy. You can even secure your sleeping pad.
For other features like shell fabric, lining, and more – follow the care instructions to prolong your investment.
My Top 5 Camping Sleeping Bag Picks
After extensive research and field testing, these are my top recommended camping sleeping bags across insulation types, seasons, shapes, and budgets:
1. The North Face Cat’s Meow
- Price: $599
- Fill: Premium 800 fill goose down
- Rating: 0°F
- Key features: Mummy shape; draft collar; waterproof/breathable shell; oversized draft tube; insulated hand warmer pockets
The Cat’s Meow is my top choice for cold weather winter camping and backpacking. This premium goose down mummy bag performs incredibly in sub-zero temperatures thanks to quality construction and materials. Compresses down very small. Excellent for multi-day winter treks. Expensive but worth the investment.
2. Kelty Galactic 30
- Price: $160
- Fill: Synthetic
- Rating: 30°F
- Key features: Affordable; mummy shape; thermal comfort hood; natural fit footbox
This budget-friendly synthetic mummy sleeping bag is fantastic for 3-season backpacking. It provides great warmth for the price with its Cloudloft insulation. Packs down reasonably small. A great entry-level option for warmer weather camping and hiking trips.
3. Big Agnes Lost Dog 15
- Price: $380
- Fill: Down
- Rating: 15°F
- Key features: Rectangular; wide at shoulders and feet; built-in pillow pocket
The roomy Lost Dog 15 is my pick for car camping and sharing. This semi-rectangular down bag has a unique shape that’s wider at the top and bottom for comfort but still thermally efficient. Great for couples and restless sleepers. Luxurious sleeping comfort.
4. Sea to Summit Ember EB III
- Price: $369
- Fill: Ultra dry down
- Rating: 45°F
- Key features: Ultra lightweight; hydrophobic down; foot zipper; shell loops
The Ember EB III is the ultimate choice for ultralight long distance backpacking in warmer climates. It only weighs 1 lb but the 850+ fill hydrophobic down keeps you surprisingly warm. Full and foot zippers allow for excellent ventilation control.
5. Hyke & Byke Eolus 0
- Price: $200
- Fill: 800 fill power duck down
- Rating: 0°F
- Key features: Mummy; water-resistant down; lightweight; stuff sack included
The Eolus 0 is the best budget 0 degree down mummy sleeping bag out there. It remarkably keeps you toasty into the teens thanks to quality duck down and a draft tube along the zipper. Packs down very small and comes with a compression sack. Excellent value cold weather bag.
Frequently Asked Camping Sleeping Bag Questions
How do you wash a sleeping bag?
It’s best to wash sleeping bags by hand and follow the care instructions on the label. Use a mild detergent, rinse thoroughly with clean water, and air dry. Do not place in washer/dryer.
What’s the warmest sleeping bag for winter camping?
For the coldest weather, look for a mummy bag rated 0°F or lower. The warmest winter bags use high fill power down paired with features like hoods, draft collars, and draft tubes to retain heat.
Are mummy sleeping bags comfortable?
While not as roomy as rectangular bags, mummy bags are optimized for warmth and weight savings. For people who sleep in one position, mummies can still be very comfortable.
How do you pack a sleeping bag?
Use a compression stuff sack designed for sleeping bags to minimize bulk. Pack loosely into the bag, carefully squeeze out air, then tighten the straps. Store in a cool, dry place.
How much do quality camping sleeping bags cost?
You can find entry-level synthetic sleeping bags for around $100. Mid-range down bags run $200-$300. For premium materials and construction, expect $400-$500 and above.
Is cotton or wool better for sleeping bags?
Wool retains warmth exceptionally well, even when damp. Cotton loses insulating ability when wet and takes longer to dry, so it’s not the best choice for camping.
What temperature rating is ideal for a sleeping bag?
It depends on the climate and seasons you camp in, as well as your own sleep warmth needs. Shoot for at least 10° colder than overnight lows. You can always open the bag or use a liner if too warm.
Get the Rest You Need with the Right Bag
A good night’s rest makes or breaks your camping experience. With the tips in this guide, you can get equipped with a top-notch sleeping bag tailored to your exact needs and budget.
The key factors are choosing the right insulation and temperature rating for the conditions you’ll be in, while also considering size, features, and packed size if backpacking. Take time to research different options and don’t hesitate to ask questions at your local gear shop.
With your new favorite sleeping bag, you’ll sleep soundly under the stars and wake up refreshed for adventures ahead. Dream big and sleep well, campers! Let me know your top sleeping bag recommendations in the comments below.