How do I pick a sleeping bag right for me?


One of the key things you need when you go out on adventures is considering how well you are going to sleep. You can’t sleep well if you’re uncomfortable and cold; so considering your options is not a waste of time.

When deciding on a sleeping bag think about a few things:

  • Temperature rating
  • Down vs. Synthetic
  • Shape and Length
  • Construction
  • Weight of the Bag
  • Season
  • Features

Temperature rating

This is one of the most important factors when choosing your sleeping bag. The rating will determine where you will be able to use your sleeping bag and what temperature you are comfortable sleeping in. You can see more on ratings and how they are tested here. Note: not all brands test bags to EN/ISO standards. It is worth checking if and where the brand got the bag tested – whether or not it was in a lab – to truly compare products. 

Down vs. Synthetic

Sleeping bags will either be filled with synthetic insulation or natural down. Synthetic is most common for car camping, summer holidays and warm summer nights. Down is a more high performing bag with a wider range so more versatile for tramping.


Shape and Length
Different bag shapes will not only have a bearing on weight and pack size but also how well the bag performs in certain conditions. Having a shorter bag if you are a shorter person will mean you are not using your body heat to heat unused space. Women specific bags will be shaped to increase thermal efficiency. 

Sleep system 
When choosing your bag you will need to consider your sleeping pad and clothing. Sleeping on a R-Rated mat at altitude will demand a higher performing bag than sleeping on a camp stretcher on a family summer holiday. You can see information on R-Value and Sleeping mats here.

Construction
How a sleeping bag is constructed tells you a lot about its warmth and intended usage. Down needs to be contained within baffles to hold it in place and trap the air that keeps you warm. The fill power of a bag will also determine performance. 

Seasons

The season in which you will be using your bag is a vital consideration. For the temperature rating of your bag, use the “lower limit” rating if you are a warm sleeper; use its “comfort” rating if you are a cold sleeper.
  • 1-2 Seasons | Summer / Late Spring | +5°C - 0°C
  • 3 Seasons | Autumn / Early Spring / Early Winter  | 0°C - 5°C
  • 4 Season | Winter  | +8°C - 12°C
Note: 4 Season does not mean 4 seasons. It refers to Winter Use.

Features

We are all unique and some things matter more than others. A few extra things for you to consider are:
  • Baffles: Compartments in the sleeping bag that hold the filling.
  • Outer Fabrics: Is the outer water resistant.
  • Left & Right Hand Zips: Ease of access based on your dominant hand
  • Zip Baffle: Insulated zip baffle (behind the zip) helps reduce heat loss.
  • Zip Cover: Prevent the zip coming undone when sleeping.
  • Hood: Closure allows you to pull the hood tight against your face for added warmth.
  • Inner Pockets: Handy for stashing valuables or a headlamp at night.
  • Stuff Sack:  Reduces the size of the packed bag for optimal storage.