Guide to Choosing the Right Sleeping Bag


Outdoorové aktivity, Treking, How to choose -guides by Varuste.net, 25.3.2026

In collaboration with Rab

A good night's sleep is the foundation of any successful adventure. Whether you're scaling high peaks or enjoying a weekend camping trip in the local woods, choosing the right sleeping bag is crucial. Rab has been crafting sleeping bags for over 40 years, and in this guide, we’ll walk you through the most important things to know before making your purchase.

1. Insulation: Down vs. Synthetic

The first question is always about the insulation. Both have their strengths:

  • Down: Offers the best warmth-to-weight ratio and packs down incredibly small. Rab uses ethically sourced and often Nikwax hydrophobic down, which repels moisture better than traditional down. Choose down when weight and packability are your top priorities.
  • Synthetic Insulation: Bags like Rab’s Solar Eco series are durable and retain their insulating properties even when damp. They are an excellent choice for humid conditions, paddling trips, or the budget-conscious camper.

2. Temperature Ratings – What do they actually mean?

Sleeping bags typically use ISO-standardized test values:

  • Comfort: The temperature at which you can sleep comfortably and relaxed all night.
  • Limit: The temperature at which you can sleep for eight hours without waking up from the cold (often in a fetal position). Rab often uses this number in product names (e.g., Ascent 600 -7°C).
  • Extreme: For emergency use only – the temperature at which you can survive for six hours without hypothermia. This should not be used as a basis for selection.

Pro tip: If you tend to feel the cold easily, choose a bag based on the Comfort rating.

3. Choose a bag based on your activity

Rab has categorized its collection for different uses to help you find the perfect balance between weight and durability:

Mythic Series: Ultralight performance for climbers and gram-counters. Features the world’s finest 900FP down and innovative TILT technology that reflects body heat back to you.

Neutrino Series: An alpinist classic. Lightweight, slim-fit design, and very high-quality down. Perfect for treks where every gram counts.

Ascent Series: A versatile and durable "workhorse." A slightly wider cut offers more comfort and room to move. An excellent choice for your first sleeping bag.

Andes & Expedition: Designed for extreme conditions, high mountains, and Arctic expeditions.

4. Details Matter

Shape: The mummy shape is the warmest because it has the least empty space to heat up. Rab’s women’s models account for different body shapes and warmth requirements. Draft Collar and Zip Baffle: Ensure the bag has a plush collar to prevent warm air from escaping through the zipper or head opening. Sleeping Mat: Remember, no sleeping bag works without sufficient insulation from the cold ground. Check your sleeping mat’s R-value!


Rab Sleeping Bags

Or browse below:

-25%
Rab Ascent 700
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Ascent 700
Kampaňová cena 277,43 - 299,93 €
Dostupné skladem
(123)
-25%
Rab Ascent 500
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Ascent 500
Kampaňová cena 261,75 - 284,25 €
Dostupné skladem
(65)
-25%
Rab Neutrino 400
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Neutrino 400
Kampaňová cena 374,93 - 397,43 €
Dostupné skladem
(44)
-25%
Rab Neutrino 600
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Neutrino 600
Kampaňová cena 449,25 - 471,75 €
Dostupné skladem
(7)
-25%
Rab Mythic 400
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Mythic 400
Kampaňová cena 486,75 €
Dostupné skladem
(9)
Od -18%
Rab Neutrino 200
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»Summer sleeping bags‪»
Rab
Neutrino 200
Kampaňová cena 290,06 - 312,56 €
Dostupné skladem
(26)
-23%
Rab Solar Eco 0
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»Summer sleeping bags‪»
Rab
Solar Eco 0
Kampaňová cena 107,93 - 115,43 €
Dostupné skladem
(17)
-25%
Rab Mythic 200
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»Summer sleeping bags‪»
Rab
Mythic 200
Kampaňová cena 412,43 €
Dostupné skladem
(8)
Rab Ascent -24C / -11F
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»Winter sleeping bags‪»
Rab
Ascent -24C / -11F
509,90 - 539,90 €
Dostupné skladem
Rab Radeon 0C / 32F
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Radeon 0C / 32F
169,90 - 179,90 €
Dostupné skladem
Rab Ascent -18C / 0F
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»Winter sleeping bags‪»
Rab
Ascent -18C / 0F
479,90 - 509,90 €
Dostupné skladem
Rab Ascent -18C / 0F Womens
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»Winter sleeping bags‪»
Rab
Ascent -18C / 0F Womens
479,90 - 509,90 €
Dostupné skladem
Rab Ascent -6C / 20F
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Ascent -6C / 20F
389,90 - 419,90 €
Dostupné skladem
Rab Ascent -6C / 20F Womens
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Ascent -6C / 20F Womens
389,90 - 419,90 €
Dostupné skladem
Rab Neutrino -6C / 20F
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Neutrino -6C / 20F
549,90 - 579,90 €
Dostupné skladem
Rab Neutrino -6C / 20F Womens
Sporty‪»Turistika‪»Spací pytle atd‪»Spací pytle‪»3-season sleeping bags‪»
Rab
Neutrino -6C / 20F Womens
549,90 - 579,90 €
Dostupné skladem

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