A compromise that offers more wiggle room than a mummy bag while remaining more heat-efficient than a rectangular one. 4. Key Features to Look For
Buying a sleeping bag requires balancing warmth, weight, and price. To choose the right one, focus on its temperature rating, the type of insulation, and its shape relative to how you plan to use it—whether for car camping or backpacking. 1. Decoding Temperature Ratings
Temperature ratings are estimates and vary by person, but industry standards (ISO/EN) provide a baseline for comparison.
Generally cheaper, hypoallergenic, and continues to insulate even when damp. The downside is that it is bulkier and heavier than down and its warmth can diminish over time as fibers break down. 3. Finding the Right Shape
The temperature at which a "standard woman" (or cold sleeper) can sleep comfortably in a relaxed position.
Insulated tubes along the zipper and around the neck to prevent warm air from escaping.
Most bags come in "Regular" (up to 6') and "Long" (up to 6'6"). Avoid a bag that is too long, as your body will have to work harder to heat the extra empty space. How to choose a sleeping bag - MEC
Look for durable, water-resistant fabrics like nylon or polyester with a DWR (durable water repellent) finish.