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Sleeping Bags

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Outdoor sleeping bags at Sport Conrad

Outdoor sleeping bags - an absolute essential for anyone who enjoys travelling in the great outdoors and appreciates the special experience of spending a night in the open air. Although a sleeping bag doesn't look particularly complex from the outside, there are a few things you should consider when buying one in order to find the right model for your desired purpose. With so many different types of sleeping bags, sizes and temperature ranges to choose from, deciding on the right model is not an easy task.
In the following sections, we provide important information about outdoor sleeping bags and what you should look out for when buying one so that you are well equipped for a good night of sleep on your next adventure.

The perfect sleeping bag for you

Down vs. synthetic fibre

A fundamental decision when buying a sleeping bag is which fabric is best suited to the desired purpose. Basically, there are two fabrics to choose from: Down and synthetic fibre. There are also sleeping bags made of cotton or silk, but as these are primarily suitable for huts or indoor use, they are not considered in this text.
Each fabric has its strengths and weaknesses. Down, for example, offers excellent insulation while still being lightweight and compact, as it compresses well. The disadvantage of a down sleeping bag, however, is that the down can clump together when it gets wet and therefore no longer keeps you as warm as when it is dry. However, there are insulated down sleeping bags nowadays that are designed to prevent the down from getting wet. Another advantage of choosing a sleeping bag made from down is its longer lifespan compared to synthetic fibres. However, this also comes at a price and down sleeping bags are usually more expensive than synthetic fibre sleeping bags.
The advantage of synthetic fibre is, that moisture and humidity are not as big of a problem compared to down, but synthetic fibre sleeping bags generally have a larger pack size and are heavier. Depending on the intended use, this can be a limiting factor.

The different shapes

In addition to the mummy sleeping bag, the most popular shapes are the egg-shaped sleeping bag and the rectangular sleeping bag. When you think of a sleeping bag, you most likely have the classic mummy sleeping bag in mind, as this is also the most widely used shape. This is also the most suitable shape for outdoor use, as it requires the least amount of air to be heated and therefore warms faster and better than other shapes. Rectangular sleeping bags are particularly suitable for camping in summer, but are not very easy to transport due to their large pack size and heavy weight. The egg-shaped sleeping bag is particularly suitable if you are planning a trip into the great outdoors in warm temperatures and don't exactly know what the weather will be like. Thanks to its shape, it offers the ideal conditions for warm, cold, wet and dry areas and changeable temperatures that cannot always be planned in advance.

Temperature range

Every sleeping bag covers a certain temperature range. To determine this, each model is tested in a standardized test to make the temperature values comparable. This test determines the comfort temperature, the limit temperature and the extreme temperature. The comfort temperature indicates the temperature up to which the average European woman just about stays warm, while the limit temperature is the reference value for the average European man. The extreme temperature reflects the temperature at which you can just about survive one night. It is therefore advisable to use the first two values as a guide. It is also important to take your own sensitivity to cold into account. If you tend to freeze more quickly, the sleeping bag for slightly colder temperatures is the better choice in case of doubt.

Finding the right size

Choosing the right size is essential. If the sleeping bag is too small, your feet will press against the insulating shell and you will lose heat. If the sleeping bag is too big or too wide, there is more space that you first have to warm and then keep warm. This means that the sleeping bag is not as warm as it should be. If you are right on the edge of a size, for example if you are 1.70 meters tall and the sleeping bag is designed for a size up to 1.70 meters, it is important to consider which position you sleep in most often. As a back or stomach sleeper, your toes tilt forwards and you tend to be slightly taller during sleep. However, if you are a side sleeper, you tend to curl up during sleep and are therefore slightly smaller. So, if you're right on the borderline, it's important to consider your preferred sleeping position to find the right size.

Areas of use

There are sleeping bags for a wide variety of uses, and we will list some of them here and explain their special features.
Trekking sleeping bags should be as light as possible and have a small pack size, as you will need to transport them every day on your hike. If you are travelling in alpine terrain, it is also advisable to choose a sleeping bag that covers a wide temperature range, as the weather in the mountains can change quickly and is sometimes unpredictable.
Three-season sleeping bags are best suited for use between spring and autumn. However, this assumes normal weather conditions and not too high an altitude. These models are insulated but not suitable for winter use.
Summer sleeping bags are, as the name suggests, suitable for summer and are therefore less insulated and relatively light.
Winter sleeping bags allow you to spend the night in the most adverse conditions and can even provide a restful night's sleep at temperatures as low as -40°C. To guarantee this, the demands on materials and quality are naturally extremely high, which leads to a higher price. They also tend to be heavy and have a lot of volume.
Bivy bags are windproof and often waterproof outer covers for sleeping bags that allow you to spend the night in the open air even in adverse conditions and are simply pulled over the sleeping bag. The bivy bag is a good alternative to a tent, especially on longer tours when you want to reduce your luggage to the bare essentials.
Hut sleeping bags have no insulation and are usually made of cotton. They are therefore not suitable for overnight stays in the open, but should really only be used if the destination of your trip is a hut.


Although there is a lot to consider when buying an outdoor sleeping bag, choosing the right model is not that difficult if you take a few important things into account and if you are clear about what you want to use the sleeping bag for. Choosing the right fabric and size is particularly important, but of course the temperature range is also crucial to ensure that you have a restful night in the outdoors and can start the next day full of energy.

The selection at Sport Conrad

Thanks to the comprehensive range of outdoor sleeping bags at Sport Conrad from top brands such as Deuter, Grüezi Bag, Mountain Equipment and Vaude, everyone can find the perfect sleeping bag for their next adventure in the great outdoors.