How To Buy A Sleeping Bag -

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

Insulated tubes along the zipper and around the neck to prevent warm air from escaping. how to buy a sleeping bag

The temperature at which a "standard man" (or warm sleeper) can sleep for eight hours in a curled position. Most bags come in "Regular" (up to 6')

Temperature ratings are estimates and vary by person, but industry standards (ISO/EN) provide a baseline for comparison. The temperature at which a "standard man" (or

The temperature at which a "standard woman" (or cold sleeper) can sleep comfortably in a relaxed position.

Offers the best warmth-to-weight ratio and is highly compressible, making it ideal for backpacking. However, it is more expensive and loses its insulating properties if it gets wet, though "hydrophobic down" treatments can mitigate this.

A survival-only rating indicating the temperature at which a standard woman can survive for six hours without hypothermia; it is not a comfort guide.