Last updated: August 5, 2021

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Welcome to our big summer sleeping bag test 2022. Here we present all the summer sleeping bags we have tested in detail. We have compiled detailed background information and added a summary of customer reviews on the web. We want to make your purchase decision easier and help you find the best summer sleeping bag for you. You will also find answers to frequently asked questions in our guide. If available, we also offer interesting test videos. Furthermore, you will also find some important information on this page that you should be aware of if you want to buy a sleeping bag for summer.




Summary

  • A summer sleeping bag is suitable for warm nights. It should keep you warm and at the same time prevent you from sweating too much. Pay attention to the specified comfort range temperature.
  • Whether you need a summer sleeping bag on a hut tour, in a hostel, for trekking or for camping influences the choice of the right model.
  • The filling material, the type of fabric and the shape all have an effect on your sleeping comfort.

Best Summer Sleeping Bag: Our Picks

Guide: Questions to ask yourself before buying a summer sleeping bag

If you're planning a backpacking trip or a hiking tour, you'll be carrying your sleeping bag with you and will be glad of every gram saved. So before you buy, think about what you plan to do and choose a model that suits your outdoor activity.

For which activities is a summer sleeping bag suitable?

Summer sleeping bags are suitable for many different activities. If you are travelling in winter but not sleeping outside, a thin hut sleeping bag could also be suitable for you. In summary, thin sleeping bags are used for the following activities:

  • Summer camp
  • Scout camp
  • Trekking tour
  • Hut tour
  • Camping
  • Backpacking trips
  • Camping
  • Festivals
  • Overnight at home in the garden

What temperature range are summer sleeping bags suitable for?

The temperature rating for summer sleeping bags is 5°+. That doesn't sound like much at first, because temperatures are rarely just above freezing on summer nights. That can only happen in the mountains. You can find a detailed description of the meaning of the temperatures given under the comfort range below.

When is a warm sleeping bag better than a summer sleeping bag?

If you are going on a long backpacking trip that takes you to higher altitudes where you will be sleeping outside in a hammock or tent, a sleeping bag with a lower comfort temperature might be suitable for you. In this case, buy a so-called inlet.

Inner sleeping bags or inlets are a type of thin sleeping bag made of cotton, fleece, silk or synthetic fibre that you use in your sleeping bag like bedding. They can also serve as a sleeping bag on their own on particularly warm days or in hostel beds.

Decision: What types of summer sleeping bags are there and which one is right for you?

We distinguish between three different types of filling material for sleeping bags:

  • Down sleeping bag
  • Synthetic fibre sleeping bag
  • Wool sleeping bag

Each of these materials has its advantages and disadvantages. The choice depends on what needs you want to cover and what kind of budget you have.

A summer sleeping bag for the mountains should have good insulation properties. (Photo: Baptiste Valthier / pexels.com)

What are the characteristics of a down sleeping bag and what are their advantages and disadvantages?

The light feathers of ducks and geese have proven to have positive properties. They are breathable, compress well and win through their light weight.

Advantages
  • Lightweight
  • Breathable
  • Good insulating properties
  • Absorbs moisture
  • Small pack size
Disadvantages
  • Expensive
  • Doesn't warm when damp
  • Sensitive when washed

More and more outdoor enthusiasts are paying attention to the sustainable origin of down. If you too want feathers from animal-friendly farming to keep you warm, look out for the RDS (Responsible Down Standard) seal of approval.

What are the features of a synthetic fibre sleeping bag and what are their advantages and disadvantages?

Today's synthetic fibre sleeping bags have very good insulation performance. The extremely thin fibres puff out and the air is trapped so that the warmth stays in the sleeping bag. The production of synthetic fibres is easier than obtaining animal filling material. That is why synthetic fibre sleeping bags are cheaper than down or wool sleeping bags.

Advantages
  • Durable
  • Usually cheaper
  • Hardly absorbs moisture
  • Warms when damp
  • Dries quickly
Disadvantages
  • Heavier than down
  • Packs larger than down
  • Less breathable

What are the characteristics of a wool sleeping bag and what are their advantages and disadvantages?

Pure new wool from sheep has excellent insulating properties that remain even when damp. The material cools in the heat and warms in the cold. In addition, wool cleans itself and is highly breathable. Sheep's hair is therefore the best filling material for your sleeping bag to get a good night's sleep.

Advantages
  • Durable
  • Hardly absorbs moisture
  • Warm when damp
  • Machine washable
  • Lightweight
Disadvantages
  • Fewer suppliers
  • Expensive
  • Not available for every comfort level

Another positive side of natural wool is that it is a renewable resource.

Buying criteria: You can use these factors to compare and evaluate summer sleeping bags

Outdoor manufacturers launch new sleeping bag models every year. To find your way through the jungle of offers and test winners, you should first find out what is available and what the meaning behind which terms is. With the help of the following criteria, you can better judge what the information on sleeping bags means:

  • Shape
  • Comfort range
  • Size
  • Zippers
  • Material
  • Seams
  • Weight
  • Pack size

Shape

There are three different basic types of sleeping bags. We have compared them in the following table:

Basic shape Features Climate
Mummy sleeping bag The mummy sleeping bag fits close to the body and insulates very well. However, this makes it warmer and it could be too warm in summer colder regions
Rectangular sleeping bag/blanket sleeping bag This type of sleeping bag can be used as a blanket because it can be opened completely Warm regions, very warm regions
Egg-shaped sleeping bag If the weather is changeable, you are well equipped with this sleeping bag. It insulates well, but is wider in the important places, so you can move freely. Changeable weather, rather cool

The mummy sleeping bag has a particularly narrow cut. Due to the small space inside, the sleeping bag gets warm quickly and insulates very well. A summer sleeping bag may be roomier, as it is not a problem if it takes a little longer for the sleeping bag to warm up due to higher outside temperatures. Another form for sleeping bags is the rectangular sleeping bag or blanket sleeping bag. As the name suggests, this type can be used as a blanket. It can be opened and spread out at all four corners. When the zips are closed, the sleeper has a lot of room to move around. The flexible blanket sleeping bag is therefore ideal as a summer sleeping bag. Last but not least, there are egg-shaped sleeping bags. They are cut very similarly to the mummy sleeping bag, but offer their sleepers more space around the knees and hips, which increases sleeping comfort. The egg shape works well as a summer sleeping bag, especially for touring or backpacking. It is the ideal mix of small pack size and high sleeping comfort. The different shapes of summer sleeping bags offer you more or less freedom of movement. It is much harder to turn your body in a mummy sleeping bag than in an egg-shaped sleeping bag or a blanket sleeping bag. If you are not used to this, you may sleep poorly.

Comfort range

The temperature specifications on sleeping bags are standardised by the EU standard EN 13537. This makes it possible to compare sleeping bags from different manufacturers. The following three values are distinguished:

  • Comfort temperature (TComf): Calculated value for an average woman who is just not freezing at this temperature.
  • Limit temperature (TLim): Calculated value for an average man who is just not freezing at this temperature.
  • Extreme temperature (TExt): Calculated value for an average woman who is prevented from freezing for six hours at this temperature with a risk of hypothermia.

Remember that you can always open your sleeping bag if you get too warm. So buy in a higher comfort range. You will be happy not to freeze if it does get a little colder.

Use earplugs so you can sleep well in your summer sleeping bag when the neighbours are still up. (Photo: Jens Mahnke / pexels.com)

You can regulate the temperature in your summer sleeping bag by adjusting your sleeping clothes accordingly.

Size

Summer sleeping bags are available in different lengths. For example, there are sleeping bags especially for women that are cut slightly shorter. So pay attention to this information. If you adjust your sleeping bag exactly to your body size, you will prevent a loss of insulation. A sleeping bag for summer can be airier. Extra space in the footwell allows you to store things like clothes or valuables. The disadvantage is that spacious sleeping bags also have a larger pack size.

Zips

Make sure that the zips on your summer sleeping bag can be opened in both directions. This way you can open your sleeping bag at the foot end and let cool air flow in. If you're travelling with your partner, buy sleeping bags that can be linked together. These can be joined together to form a large blanket.

Material

The following materials are used for a summer sleeping bag:

material properties
microfibre condensation escapes, windproof
nylon/polyester extremely quick drying, breathable, waterproof, lightweight
cotton absorbs moisture, heavy, dries slowly
membrane fabrics for warm weather, should only be stored dry

Outer shell material

When choosing the outer shell, make sure that the material is water and dirt repellent, such as nylon and polyester. Microfibre increases the temperature inside by about 5°C thanks to its good windproofing. Membrane fabrics are also good for warm weather, but they are rather delicate. Pure cotton as an outer fabric for sleeping bags is not recommended because of its rapid water absorption and long drying time.

Inner shell material

For the inner fabric, on the other hand, cotton is very suitable thanks to its breathability and comfortable feeling on the skin, because the fabric does not stick. The softer nylon and polyester feel, the higher the quality of the fabric. They are also suitable for the inner skin of the sleeping bag. Microfibre is light and water-repellent.

Seams

Stitched seams join the outer shell to the inner shell. With warm sleeping bags, these should not form so-called cold bridges through which heat escapes. Nylon fabrics often have ripstop seams. These show up as a small check pattern and make the fabric particularly tear-resistant.

Weight

The material, shape and length of the sleeping bag affect its weight. A cheap sleeping bag from a discount store often weighs a lot more than a high-tech brand product. However, for occasional use when camping or for festivals, an Aldi sleeping bag should be enough. If you use your summer sleeping bag often and carry it attached to your backpack, you will be better off with an ultra-light model. Sometimes it is worth paying a little more. Good quality has its price.

Pack size

Down sleeping bags in particular can be compressed into a very small package. Some models come with a compression sack. With the help of this bag, the air can be easily squeezed out and your rolled-up sleeping bag shrinks to a very small pack size. You can also buy compression bags if the sleeping bag model of your choice is not equipped with them.

Interesting facts about summer sleeping bags

If you don't sleep as well in a foreign environment as you do at home, you're like many other travellers. All the better if you know a few tricks that will help you sleep better when you're on the road.

How do I sleep well in my sleeping bag?

When camping, the choice of sleeping place is crucial. Make sure you clear away rocks and other hard objects before pitching your tent on as level a terrain as possible and in a spot sheltered from the wind. Tighten the tent so that it moves less in the wind and causes less noise.

Never leave your tent open when it is lit from inside, so that no mosquitoes or moths can disturb your night's rest.

To lie as comfortably as possible, use a soft pad such as a sleeping mat. A sleeping bag cover stuffed with a jumper can serve as a pillow. Use earplugs so that noises do not prevent you from falling asleep.

An ultra-light summer rucksack is a good choice for trekking. (Photo: Tamás Mészarós / pexels.com)

What clothing is suitable for sleeping in a sleeping bag?

In the past, the best clothing for sleeping in a sleeping bag was none at all. Today, this assumption is considered outdated. Adapt your sleeping bag pyjamas to the outside temperature. If it is very hot, you should ideally wear thin cotton clothes. In low temperatures, fleece and thermal clothing will help keep you warm. The fabric should fit close to your body, but not be too tight. It can also get colder in the summer. For such days, you should have a hat handy so that you don't lose heat through your head. https://www.youtube.com/watch?v=mzo7A3Cbe9c

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