When heading out for a trekking or camping adventure, having the right sleeping bag is essential. A good sleeping bag keeps your body temperature comfortable, ensuring a restful sleep. The type of sleeping bag you need depends on your specific activities and the conditions you will encounter.

Choosing a sleeping bag based on conditions

How to choose the best sleeping bag? Start with where you are going and what weather conditions you expect. If you go camping in a place where it is above 10 degrees at night, you will need a different sleeping bag than when it can get well below zero. That is why it is important to know what temperature to expect. With this information, you determine which sleeping bag is right based on its comfort or limit temperature.

Comfort and limit temperature of a sleeping bag

When choosing a good sleeping bag, look at comfort temperature and limit temperatur.

  • Comfort temperature: indicates at what temperature an average European woman can sleep comfortably without feeling cold.
  • Limit temperature: indicates at what temperature an average European man can sleep comfortably without feeling cold. The testing assumes that the person's knees are drawn up.

Please feel free to deviate from the average if you know that you are actually easily cold or hot.

Extreme temperature

Besides a comfort temperature and limit temperature, there is also an extreme temperature. This indicates the temperature at which your sleeping bag still provides enough warmth to prevent hypothermia. At this temperature you will not sleep and there is a risk of frostbite. It is only meant for emergency situations. If the temperature drops to the extreme temperature, it might even be advisable to move around to stay warmer than inside the sleeping bag. So when choosing the right sleeping bag, don't look at the extreme temperature. 

Sleeping bags for women vs men

Compared to man's sleeping bags, women's sleeping bags are genarally 15 centimeters shorter and feature extra insulation around the upper body, hips and foot area. 

Sleeping bag categories explained

At Snowcountry, we primarily focus on lightweight, compact sleeping bags for trekking. Our range includes both winter and summer sleeping bags. We offer the four different types of sleeping bags:

  • Mummy sleeping bag with a hood
  • Mummy sleeping bag without a hood
  • Quilt
  • Rectangular sleeping bag

Mummy sleeping bag

A mummy sleeping bag is designed to closely contour your body, minimizing empty space and reducing heat loss while you sleep. The shape helps to retain body warmth, keeping you warm. Most mummy sleeping bags come with a hood to prevent heat loss from your head and neck. A hood is essential when temperatures drop below freezing.

Quilt

A quilt is for enthusiasts who want to carry the least weight when trekking. This type of sleeping bag has no bottom and is essentially a blanket. However, you should consider this in combination with a well-insulating sleeping mat.

Rectangular sleeping bag

This is a comfortable sleeping bag with more room to move around. Rectangular sleeping bags are less suitable for very cold temperatures because of the extra space. You lose the most heat from your head and neck. Since rectangular sleeping bags usually lack a hood, they are not suitable for use in sub-freezing temperatures, regardless of the provided comfort and limit temperatures.

Down vs synthetic insulation

When buying a sleeping bag, you have the choice between down and synthetic insulation. We recommend to choose down for trekking and camping. While it may be slightly more expensive, the natural filling of down offers numerous advantages:

  • Optimal temperature regulation: creating a comfortable sleeping environment.
  • Can be compressed efficiently: for minimal packing volume.
  • Less weight: since down requires less to achieve the same insulation as a synthetic-filled sleeping bag.
  • Last longer: since synthetic insulation loses insulation properties everty time you was or compress it. This means that a synthetic sleeping bag with a comfort temperature of -10 degrees may become unusable at sub-freezing temperatures within a few years.

The main disadvantage of down insulation is that it dries poorly. During your trip, it is advisable to keep the sleeping bag dry.

How to wash and care your sleeping bag

Snowcountry advice: have your down sleeping bag professionally cleaned by a down washing service.

Down is a delicate material that requires careful handling when it comes to washing. We recommend to not was your down sleeping bag yourself, since it often results in an unusable product. Wash your sleeping bag only when absolutely necessary. For example when the sleeping bag becomes to dirty or has an unpleasant odor.

Important: Do not take your down sleeping bag to a regular dry cleaner, as the cleaning solvents can damage the down, reducing the insulation properties of your sleeping bag.

Still want to wash your down sleeping bag yourself

If you prefer to do it yourself, here are some tips:

  1. Start by reading the washing instructions.
  2. Use a liquid detergent specifically designed for down.
  3. Hand washing is preferred, but if you use a washing machine, choose a delicate cycle with a maximum of 30 degrees and an additional low-speed spin cycle before removing the sleeping bag from the machine.
  4. Use a tumble dryer at a low temperature with a few tennis balls inside to prevent clumping of the down as it dries.

Tips from Snowcountry

Here are some additional tips for using your sleeping bag:

Use a sleeping bag liner

A sleeping bag liner, also known as a liner, is a cotton, silk, or polyester bag used inside your sleeping bag. The advantage is that you can easily wash the liner, keeping your sleeping bag cleaner and extending its lifespan since you'll need to wash it less frequently. Additionally, a standard sleeping bag liner adds 3 to 5 degrees to the insulation value of the sleeping bag, allowing you to opt for a slightly less expensive sleeping bag in some cases. Some liners even add approximately 10 to 15 degrees, making them ideal for adapting a sleeping bag to colder seasons.

Also read our article about sleeping bag liners.

All sleeping bag liners

Are you sleeping in a tent or outdoors?

If you're sleeping in a tent, consider not only the expected nighttime temperatures but also the fact that, when two people sleep in a two-person tent, the temperature inside the tent is often 5 to 7 degrees higher than the outside temperature. If you're alone in the same two-person tent, the temperature inside the tent is significantly lower. You can take this into account when choosing a sleeping bag.

Choose a suitable sleeping mat for the situation

Especially in colder temperatures, it's essential to consider your sleeping mat. The filling of your sleeping bag is compressed by your body and is less effective in that area. Therefore, for insulation from below, you rely on your sleeping mat. If your mat has limited insulating properties, you can still get cold, even if the sleeping bag is suitable in terms of temperature.

All sleeping mats

FAQ

Is there a difference between men's and women's sleeping bags?

Generally yes. Women tend to get cold more easily than men. Therefore, sleeping bags for women usually have more insulation, particularly around the upper body, hips, and foot area. Additionally, women's sleeping bags are generally about 15 centimeters shorter.

What type of sleeping bag is best for cold weather or snow conditions?

For weather condition with temperatures below freezing or even snow, it is best to choose a mummy sleeping bag with hood.

Which sleeping bag for back sleeper or side sleeper?

Back sleepers fit comfortably in most sleeping bags. Especially in mummy sleeping bags, because they sleep in straight position. The snug fit helps keeping warm without feeling restrictive. However, side sleepers often prefer sleeping bags which offer a bit more room to move. Therefore, they often lie more comfortably in a rectangular sleeping bag. However, if you go out in cold temperatures below zero then you can also look at mummy sleeping bags with some extra space.

For instance, this year Thermarest is coming out with the Thermarest Boost, a semi-rectangular mummy sleeping bag. The semi-rectangular shape gives you more freedom of movement than a mummy sleeping bag. But an innovative extra zipper allows you to turn the sleeping bag into a mummy sleeping bag in the middle.

Ready to find your perfect sleeping bag? Explore our lightweight and winter-ready collection!