How to choose a sleeping bag

Your sleeping bag determines whether you will sleep soundly in nature or just “survive” the night. The differences between sleeping bags are not only in price, but mainly in cut, thermal reserve, packability and comfort.

We offer mummy sleeping bags for backpacks, blankets for comfortable sleeping, and festival sets, where you get a sleeping bag and a sleeping mat together.

Quick selection based on what you need

1) I want the simplest sleeping bag for summer (festivals, garden, cottage)

✔ Lightweight, compact, inexpensive – ideal for a “quick overnight stay”.

MUMMY 1 (200 g/m²) – a classic for summer, lightweight and compact
Festival set EASY.COM (sleeping bag + sleeping mat) – a ready-made solution without having to think twice
SPP1 (Pilot 1) – Deca with headrest

2) I want comfort like under a duvet (freedom of movement)

✔ Duvet sleeping bags are comfortable – you can move around more in them, and they can often be unzipped like a duvet.

Masker-T (blanket) – summer comfort, can be unzipped
Dekker380 feather duvet – even more comfort (can also be unzipped into a wider blanket)

3) I want a universal blanket for spring–autumn (when it can be cold at night)

✔ Here it is worth paying extra for better insulation, a longer cut and an overall more comfortable and higher quality sleeping bag design.

Mummy 10 (220 cm) – a more versatile choice for trips from spring to autumn
Lonber (230 cm) – for taller people / when you want extra legroom
Masker-M (2×150 g/m², 225 cm) – mummy shape, solid insulation

4) I want more warmth (so I can sleep peacefully even on colder nights)

✔ If you feel the cold, sleep by the water/in the mountains, or cycle outside of summer, focus mainly on insulation strength.

MUMMY 3 (300 g/m²) – warmer mummy sleeping bag with compression bag
SPM7 (350 g/m²) – an even warmer option

5) I want the lowest possible weight and volume in my backpack

✔ If you are into light hiking, pay attention mainly to weight and packability. Down sleeping bags tend to be the best in terms of warmth/volume ratio.

Pongee 800 (duck down)
Dekker380 feather duvet (0.8 kg) – a great choice if you want comfort and low weight

5 decisive parameters

1) Sleeping bag type: Mummy vs. blanket

Mummy = warmer and more compact (better for a backpack).
Blanket sleeping bag = more comfort and space, can often be unzipped like a blanket.

2) Temperature: focus on real-world use

The temperatures on sleeping bags are often “on the edge”. In practice, the following applies:

Summer: around +10 to +15 °C (for a cottage, festival)
Spring/autumn: better to have a larger reserve (depending on how sensitive you are to the cold)
Colder nights: opt for thicker insulation (g/m²) and a mummy shape

With ACRA, you can also filter by “comfort temperature” and other parameters.

3) Insulation/filling

Hollow fibre (synthetic): moisture resistant, easy maintenance, great for regular camping.
Down filling: excellent packability and warmth-to-weight ratio (lightweight hiking).

4) Dimensions (make sure you actually fit in the sleeping bag)

Check the length (and width at the shoulders). If you are over 185 cm tall, a longer model (220–230 cm) is often worth it.

Tips for longer models:

5) Weight and packability

If you are carrying the sleeping bag on your back, consider:

total weight
dimensions when packed
whether the package includes a compression bag

For example, the MUMMY 3 comes with a compression bag and can be significantly reduced in volume when compressed.

Mini tips before buying

✔ A sleeping bag does not keep you warm “from below” – without a sleeping mat/something underneath you, you will lose heat to the ground faster than you expect.

✔ If you are hesitating between two temperatures – choose the warmer one. You can ventilate excess heat by unzipping the bag, but it is difficult to warm up again.

✔ Moisture is the enemy of comfort. In wet conditions and near water, synthetic materials often pay off, or you can protect your sleeping bag with a waterproof cover.

✔ Rectangular sleeping bags are the most “comfortable” option. If you care about comfort and space, they are often better than mummy bags.

✔ Want a ready-made solution? A sleeping bag + mat set will save you time and money.