Because of the cuts of the two bags and also the space they supply you might discover that you're on your back sleeping in the mommy bag while the rectangle-shaped bag will certainly let you sleep on your side, tummy or back. And also depending on exactly how large the rectangular bag is you can change your body right into also one of the most one-of-a-kind but typical for you resting settings in order to get a comfy night's remainder.
There are some sacrifices though in opting for a bag that supplies all that space to move. The most significant possibly being your home heating capacities and heat scores. See, while having all that space is nice, much like having a big house with tall ceilings it takes a great deal even more to heat the within. The added room requires more effort to keep cozy and also for that reason, isn't really as efficient for shutting out the cold as a mummy bag is. Obviously having said that, the pyjamas you prefer to oversleep can aid make up for the heat differences between the bags also ... approximately particular temperature levels. Suffice to claim that artic temps could call for more than a teddy or set of boxers.
Some U.S. companies of backpacking sleeping bags have complied with the European Standard (EN 13537) technique of temperature level screening. Without entering into excessive deepness about exactly how they reach these numbers, generally they check the best sleeping bags under strict standards using a clothed dummy sporting long underwear and also a hat. Sensors on the mannequin document temperature readings.