Rectangle-shaped sleeping bags go as much back as the late 1800's when a mail order catalog pioneer Pryce Pryce-Jones came up with the suggestion to attach 2 rectangular carpets together with ties. He is taken into consideration to be the innovator of today's contemporary rectangular sleeping bag design. After the war he had several of these bags still left as well as made a decision to market them to the public.
Goose Down Resting Bag: There's nothing with a greater weight to warmth proportion when compared with down. A Goose Down resting bag is extremely light-weight. Down is only for people most diligent in maintaining their sleeping bag completely dry. Hood: as detailed previously with the Mummy Sleeping Bag, a hood having a drawstring could assist keep temperature.
Temperature rankings are quite crucial items of details to consider when picking a bag. And although mummy and also rectangle-shaped resting bags can cover a wide range of temperature levels, mummy bags are the common designs for the extreme polar temps such as those you would locate in the Andes.