Are sleeping bags comfortable? How to make them cozier

by | Apr 14, 2023 | Gear

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Nobody wants to be uncomfortable when they’re camping—especially when trying to sleep.

A sleeping bag is a standard part of any camping sleep system.

A red sleeping bag on the grass.

It’s also a vital part of staying warm and comfortable in the wild.

So yes, sleeping bags are comfortable, but their comfort level depends largely on their quality.

What makes a sleeping bag comfortable?

Here are some of the main factors that contribute to the comfort level of a sleeping bags:

Temperature rating

Sleeping in a sleeping bag in the winter.

The temperature rating is one of the most critical factors in keeping you comfortable throughout the night.

This rating indicates the lowest temperature at which the bag will keep you warm.

Keep in mind that this is just an estimate based on the average person.

A sleeping bag with a temperature rating that matches the expected temperature of your camping location might keep you comfortable throughout the night, but it also might not.

I have a sleeping bag rated for 23°F (-5°C) and when I used it in 30-degree weather (around -1°C), I was still cold—because I’m female and I tend to be cold when I sleep.

The lesson here is to consider how hot or cold you tend to sleep, and any other variables—such as wind chill factor and what you’re wearing to bed.

In our experience, it’s always best to choose a sleeping bag with a slightly lower temperature than the expected temperature to be on the safe side.


White down feathers.

The insulation material used in a sleeping bag is another crucial factor in determining comfort.

Down insulation is known for its excellent warmth-to-weight ratio, making it a popular choice.

However, synthetic insulation is also a good option, especially for wet environments.

Synthetic insulation is more water-resistant than down and still provides excellent warmth.


Sleeping bags hanging on a clothesline to dry.

The material of a sleeping bag affects its durability, weight, and comfort.

Nylon is a common material used in sleeping bags because it is lightweight, durable, and water-resistant.

However, it can be noisy and less comfortable than cotton or flannel.

The inner lining of a sleeping bag can also impact comfort.

A soft and smooth lining can make a sleeping bag more comfortable to sleep in.

Shape and size

A family of four with different sized sleeping bags.

The shape and size of a sleeping bag also play a significant role in comfort.

A mummy-shaped sleeping bag is designed to fit snugly around your body, providing excellent warmth and making it ideal for cold weather camping.

A rectangular-shaped sleeping bag provides more room to move around and is more comfortable for people who like to sleep on their sides or move around during the night.

The size of a sleeping bag is also essential for comfort.

A sleeping bag that’s too small can be uncomfortable, whereas one that’s too big can be less effective at keeping you warm.

Most adult sleeping bags come in standard sizes, but some brands have variations that are extra wide or extra long for big and tall people.

Ross is 6’5″ tall, which means he needs an extra long sleeping bag of at least 80″ in length.

Types of sleeping bags and their comfort level

When it comes to choosing a sleeping bag, there are several types to consider, each with its own level of comfort. Here are the most common types:

Mummy bags

A woman in a sleeping bag at a campsite.

Mummy bags are designed to be lightweight and compact, making them a popular choice for backpackers.

They’re also very warm, thanks to their tapered shape and hood that covers your head.

However, some people find them too constricting and uncomfortable.

Rectangular bags

A sleeping bag liner on the grass.

Rectangular bags are the most spacious and comfortable type of sleeping bag.

They’re great for car camping or for people who move around a lot in their sleep, but they’re not always as warm as mummy bags.

They can also be bulky and heavy.

Semi-rectangular bags

A man holding up a sleeping bag at an outdoor store.

Semi-rectangular bags are a hybrid of mummy and rectangular bags.

They offer more room than mummy bags but are still tapered for warmth.

These ones are a good compromise between warmth and comfort.

Double sleeping bags

A double sleeping bag inside a tent.

Double sleeping bags are designed for couples or people who want to share a sleeping bag.

They’re roomy and comfortable, but can be heavy and difficult to pack.

Double sleeping bag aren’t as warm as mummy bags, however they’re great for casual camping in mild temperatures.


Two camping pillows and a quilt inside a tent.

Quilts are a lightweight and minimalist alternative to sleeping bags.

They’re essentially a blanket with a footbox and clip-in fasteners along the sides.

Two elastic straps are placed around your air mattress with clips to attach to the fasteners on the quilt.

The idea behind quilts is that you don’t need to lie on your insulation the way you do with a sleeping bag, which only compresses it and makes it less effective.

As long as you have an air mattress or sleeping bad with an appropriate R-value for the outside temperature, your quilt will keep you warm.

Quilts are extremely lightweight, making them ideal for backpacking trips.

They’re also more comfortable than mummy bags because they give you more room to move around, but they aren’t quite as warm as mummy bags.

They’re great for warm weather camping or for people who don’t like the constricting feeling of a sleeping bag.

How to boost the comfort level of your sleeping bag

A comfortable sleeping bag can make all the difference in getting a good night’s sleep.

Here are some tips to boost the comfort of your sleeping bag:

Add a sleeping bag liner

The packaging of a Sea to Summit Reactor sleeping bag liner.

A sleeping bag liner can add a few degrees of warmth to your sleeping bag and provide a soft, comfortable layer between you and the bag.

Alternatively, if you’re camping in hot weather, you can add a cooling liner that wicks moisture away from your body and keeps you cool.

Use a camping pillow

Inside a 2-person tent.

While it may be tempting to use a rolled-up jacket as a pillow, investing in a camping pillow can greatly improve your sleeping comfort.

A camping pillow will provide better support for your neck and head, allowing you to sleep more soundly.

We’re big fans of the Vaverto memory foam camping pillow, which is not only super comfortable but also compact when packed away.

Use a comfortable air mattress

A super thick camping air mattress inside a tent with two sleeping bags.

An air mattress with an R-value of at least 2 to 4 is ideal for three-season camping.

A thickness of at least 2.5 inches will also give you enough cushioning and support for a good night’s sleep.

Ross and I both have the Theramest NeoAir XLite, which we swear by—even for ultralight camping.

If you struggle with back pain, we also recommend checking out our roundup of the best air mattresses for bad backs.

Sleep on a camping cot

A camping cot inside a tent.

If you’re willing to invest a bit more, a camping cot can provide the ultimate in sleeping comfort.

A cot will keep you off the ground and provide a sturdy, supportive surface for your sleeping bag.

For even more comfort, you can also experiment with placing your air mattress on top of your camping cot.

We’ve both slept on ultralight Helinox camping cots without air mattresses and found them to be super comfortable.

Again if you’re worried about waking up with back pain, we recommend having a look at the best camping cots for bad backs.

Sleeping bags are supposed to be comfortable

A person lying down in their camping tent while gazing out at the mountains.

When it comes to sleeping bags, comfort is a subjective experience.

What works for one person may not work for another.

But by considering factors such as size and shape, insulation, temperature rating, and fabric, you can increase your chances of finding a comfortable sleeping bag.

Always consider your personal preferences and sleeping habits when choosing a sleeping bag.

If you tend to sleep cold, you may want a sleeping bag with a higher fill weight and a more insulating fabric.

On the other hand, if you tend to sleep warm, you may prefer a sleeping bag with a lower temperature rating and a more breathable fabric.

One thing to keep in mind is that a sleeping bag alone may not always provide the comfort you need.

Adding a sleeping pad or pillow can make a big difference in how comfortable you are while sleeping outdoors.

Ultimately, the most comfortable sleeping bag for you will depend on your individual needs and preferences.

By doing your research and considering all the factors, you can find a sleeping bag that will help you get a good night’s sleep no matter where your adventures take you.

Next up: How to keep your feet warm in a sleeping bag

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About Us

Elise & Ross

We’re Elise and Ross, avid backcountry campers and outdoor adventurers! We started Gone Camping Again as a way to share our knowledge and experience about wilderness living and travel. Our hope is that we inspire you to get outside and enjoy all that nature has to offer!

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