The significant difference between both styles is the cut and also form of the bags. The mummy bag is extra restricting. You can think about it like your own individual cocoon where you can go to bed in the evening as a caterpillar as well as wake up the next early morning as a butterfly. You're completed tight with not a lot of area to relocate. The rectangle-shaped bed on the other hand gets its name from its rectangle-shaped form as well as lets you relocate your legs.
Rectangle-shaped: These are specifically like the term recommends. A big rectangular shape. As a result of their form, they tend to be the least functional style of sleeping bag. There is a bargain of room within the bag for the body to warm up. Because of their heavy weight, they might be far much better matched for a "Automobile Camping" journey instead of a backpacking tour. They do have the benefit of a set of bags being able to be zipped collectively as well as come to be a resting bag for a couple rather than one person. With this style, a full or queen blow-up mattress beneath truly contributes to a pleasurable evening's sleep. (Once more not advised for the back country).
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.