
If you’re searching for the perfect sleeping bag that will meet all of your needs, forget about it!
There is no such thing.
However in saying that, there is a sleeping bag out there that will keep you warm and happy through most of your camping adventures, a three-season mummy type with a temperature/comfort rating of around 15 to 20 degrees Fahrenheit.
A nice three-season bag should be able to get you through a cold evening when camping in spring or fall and not overheat you during a warm night in the middle of summer.
If your preference is more towards winter camping, then opt for a bag rated to below 0 degrees Fahrenheit. Winter mountain climbing requires you to have a sleeping bag temperature rating of minus 15 to minus 40 degrees Fahrenheit.
Mummy-shaped sleeping bags are the most efficient sleeping bag at keeping body warmth. However in some cases, some people find them tight. Also, another tip is to be sure that if you are buying two sleeping bags to zip together, the zippers are compatible and you purchase both a left as well as a right zipper.
Shape of Sleeping Bags
Sleeping bags come in both a rectangular shape and a mummy shape. The style which is right for you depends on
the way you like to sleep. Some people may not give much thought to how they sleep but it can play a factor in
terms of having a good night’s sleep when you are camping.
A mummy bag would be suitable for those who tend to curl up whereas those who like to sleep sprawled out would find the rectangular bag more comfortable. The mummy bag’s smaller size also requires less energy for the body to warm up and it also has a hood which can be pulled tightly around the head area, thus creating additional warmth. The rectangular sleeping bag on the other hand contains more air space and since it will not close around your head, getting warm can take longer.
Temperature and Insulation
A good sleeping bag will maintain the warmth of your body through insulation, but the way the
bag is constructed will decide how well it is insulated. Make sure to choose a sleeping bag with a temperature
rating based on the type of climate you plan to use the sleeping bag in.
When choosing a sleeping bag, you should take into consideration not just the climate but also the types of activities you will be doing which can have an effect on your level of fatigue and metabolic body factors.
Down insulation is known to be the best insulator because it is small and can be compressed quite easily. Unfortunately the disadvantage of a down sleeping bag is that they lose their insulating capabilities when they get wet. A well-maintained Down sleeping bag can last for many years. Whereas, synthetic sleeping bags can remain well-insulated regardless of being wet but weigh quite a bit more and don’t have the durability of down bags.
Things to consider when buying a sleeping bag
The majority of bags are constructed from nylon, polyester, or nylon blends inside and out. Sleeping bags with cotton
insides, quilted rectangular shapes, and children’s sleeping bags with cartoon characters printed on them, not surprisingly, are not recommended for backpacking or for winter camping trips.
When you purchase a sleeping bag, take a little time to really check it out. If the store you are buying it at will allow you to, get inside it, roll around in it, zip it up, etc and then choose the one that seems to best meet your needs for comfort, warmth, and toe room along with affordability. Although you may be looked at funny when doing
this it is actually worth all that to make sure what you are buying will be to your liking.
All sleeping bags generally have similar features. Check out the following from, “The guide to buying a sleeping bag for
dummies”:
A lining of taffeta or other soft non-cotton material is more comfortable, warms up quickly, and breathes correctly.
A two-way zipper offers more flexibility options when you are attempting to get out or into the sleeping bag. Just a suggestion, be sure to buy two sleeping bags that are compatible with the other, if you plan to zip two sleeping bags together to cuddle with your significant other.
You want a differential cut — the inner lining is sewn smaller than the outer shell — which allows insulation to
fluff up to its maximum. If there is more fluff, the sleeping bag will be warmer.
An insulated draft collar helps to seal in the warmth.
Hook and loop tabs should cover the zipper toggle by the hood, preventing unplanned unzippering’s while you sleep.
A multisectioned or shaped hood, cups the head naturally.
Ample draft tube that hangs from the top of the bag and covers the zipper to seal out cold air.
A windproof and water-resistant outer shell. Dry Loft is the most down proof.
Semi rectangular cut for sleepers who toss and turn. Mummy-style bag for sleepers who manage to stay put.
Dark colored lining. This absorbs heat better and the sun’s rays most efficiently should you need to dry out your
bed.
One last highly desirable option: a fleece-lined stuff sack. Turn it inside out for a comfy pillow when stuffed with a
parka or your extra clothing.
Sleeping Bags For Cold Weather
Sleeping bag designers generally agree that a cold weather sleeping bag must have the following features to keep the occupant really warm: zipper draft tubes and shoulder collars, hoods that cup the head and insulate without being claustrophobic, and a temperature rating of 0 Fahrenheit or below (in the winter it is far better to err on the side of warmth).
What insulation do designers prefer? Down, with a 650-power fill rating or above, is best for weight-to-warmth ratio
and for longevity. The fill power of down indicates the amount of actual downy feather and quill. The lower the fill
number, the more quill and less feather. The higher the number, the less quill and more feather.
How big should a winter bag be? Buy it long.
Most mountaineers recommend against regular-sized sleeping bags and opt for sleeping bags that offer at least an extra 8 to 10 inches of space at the foot of the sleeping bag after you are nestled comfortably inside.
Those extra inches provide adequate space to store cameras, water, boots, and such items that you don’t want
to freeze.
In addition, bags with a wider cut can offer more warmth because they give you room to add clothing without
constricting the bag
No matter what type of sleeping bag you choose, it’s important to make sure it’s the best choice for your sleeping
needs. As long as you take care of your sleeping bag, much like your tent and backpack, it should last you a very long
time.