Sleeping Bags
Sleeping bags are insulated, portable bedding systems designed to keep you warm and comfortable while sleeping outdoors—whether you're hiking, camping, or mountaineering. They trap body heat and provide protection from the cold, wind, and sometimes moisture.
Key Components of a Sleeping Bag:
-
Shell Fabric:
-
Durable outer layer (usually nylon or polyester)
-
Often water-resistant or treated with DWR (Durable Water Repellent)
-
-
Insulation:
-
Down insulation: Made from duck or goose feathers — very warm and lightweight but loses warmth when wet unless treated.
-
Synthetic insulation: Made from polyester fibers — heavier than down, but insulates even when wet and dries faster.
-
-
Lining:
-
The soft inner layer for comfort
-
Often made of polyester or nylon taffeta
-
-
Zipper:
-
Lets you open or close the bag for ventilation or warmth
-
Some models offer two-way zippers for foot venting
-
-
Hood & Draft Collar:
-
Helps retain warmth around your head and neck
-
Types of Sleeping Bags (by Shape):
| Type | Shape | Pros | Cons |
|---|---|---|---|
| Mummy | Tapered with a hood | Warmest, lightest | Less room to move |
| Rectangular | Straight sides | More room, good for summer. | Bulkier, less thermal efficiency |
| Semi-rectangular (Hybrid) | In-between | Balance of warmth and space. | Not as warm as mummy, not as roomy as rectangular |
| Double | For two people | Cozy, good for couples | Heavier and bulkier |
Temperature Ratings:
Most sleeping bags have a comfort rating and a limit rating, often based on the EN/ISO 13537 standard.
-
Comfort Rating: Temperature a typical person sleeps comfortably
-
Limit Rating: Lowest temp for a standard male to sleep without waking from cold
Example:
A bag rated 15°C / 59°F (comfort) is good for warm nights.
A bag rated -5°C / 23°F (limit) is suitable for cold-weather hiking.
Other Considerations:
-
Packed size & weight: Crucial for hiking or backpacking
-
Left or right zip: Important if you're pairing two bags
-
Sleeping bag liners: Add warmth, keep the bag clean
Summary:
A sleeping bag is your main insulation system for sleeping outdoors. Choose one based on:
-
The temperature of your destination
-
Whether you prefer down or synthetic
-
Your weight/space needs while hiking
Want recommendations based on where you’re going or your budget?
