Remember that with time, from typical use, a treking sleeping bag will certainly lose its warming performance. This results from the fill obtaining a bit much more compressed. This will cause the "air pockets" to go away.
If you see a +20 degree score that would certainly indicate that the bag should be cozy enough for temperatures that are 20 levels or warmer.. And if you see a - 20 level score then it has actually been figured out that the bag needs to be cozy sufficient for minus 20 degree climate.
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.