Posted by
elliot on Tuesday, November 11th 2008
As the first wave of freezing weather starts to wind its way down from the North Pole, it’s time for all serious campers to get themselves into their four-season sleeping bags. If you need to upgrade to a new one, here’s what you should be looking at.
For additional warmth - one good idea is using a vapour barrier inside your sleeping bag. Although they will keep you warm they might also leave you wet and clammy - so maybe the sleeping bag on it’s own and an additional layer of clothing will do instead.

source: © shopzilla - marmot never summer
First, decide whether you want down or synthetic fibre sleeping bags. The
down bag is always really warm, compresses well so it packs down to a small size and doesn’t weigh much. The downside is that it
takes ages to dry out if you get it wet.
Synthetic sleeping bags will keep you as warm as down, dry quickly and are easier to care for. The downside is their weight as they don’t pack down as well as
the insulation is bulkier. So it’s up to you to decide whether you compromise weight for dryness or vice versa.

source: © shopzilla - rab q600
The top sleeping bags for extreme cold are
Marmot and Rab. Rab are a lot more technical going down to -25° on some of their bags. Marmot have a down bag for £190 called
Never Summer, it packs down to 40cmx22cm and weighs a tiny 1.7kg.
Rab’s Q600 down bag is a frightening £290 but packs down to 30cmx18cm and weighs only 1.1kg. It also boasts a
Pertex inner and outer layer keeping you extra cosy.

source: © shopzilla - marmot wave iv
On the
synthetic side, I found only two sleeping bags that went anywhere near Rab and Marmot’s down bag warmth factor. Marmot has a synthetic fibre bag called
Wave IV for £85 which copes with temperatures to -11°. It packs down to 40cmx25cm and weighs 2.03kg. On the other side, we have
Mountain Hardwear’s Lamina copes with -12°, compresses to 46cmx22cm and weighs 1.7kg.

source: © shopzilla - mountain hardware lamina
This bag will set you back £100.
All the sleeping bags mentioned are standard sizes going up to 185cm in length and all are mummy shaped with drawstring hoods. There seems to be quite a bit of difference between all these bags on price, weight and size. It could be quite tricky to decide between sleeping bags. My money is on the down bags. But the rest is up to you – just stay warm!