The ideal way to pick a cozy enough bag is to go with one that handles a 10 degree colder climate than exactly what you're anticipating to be resting in. The last most significant consideration in selecting a bag is the insulation that is made use of in that bag.
When not utilizing your bag, never ever leave it inside a things bag, always hang it up or maintain it in a loose storage bag. In case you leave it saved inside a small bag, it can completely lower the insulation.
One more item you could acquire is a sleeping bag liner. These offer extra heat on cold evenings, as well as can likewise be gotten rid of and washed, conserving your sleeping bag from the regular damage.