The comfort temperature is the lowest ambient temperature at which an average woman can sleep comfortably for 8 hours.

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Sleeping bags with a comfort temperature between -9°C and 2°C are recommended for use in Spring, Summer, and Autumn (3 seasons).

It plays an important role, depending on the intended use of the sleeping bag. Ideally, for hiking, trekking, or mountaineering, a sleeping bag weighing less than 1.5 kg is recommended to facilitate transport and reduce the load on the backpack.

On the other hand, sleeping bags with greater weight are preferred for camping or stationary use.

Hollow Fiber

Type of synthetic filling that offers better insulation than other synthetics (due to hollow fibers that trap air) and retains warmth even when wet. It is economical and easy to care for. However, it is heavier and bulkier than down and loses its effectiveness over time.

The warmth of a sleeping bag is determined by the fill density inside it, which is measured in grams per square meter (GSM).

300

Suitable for spring, summer, autumn

Polyester

Durable and economical synthetic fabric, ideal for the exterior or interior of a sleeping bag. It does not absorb water, so it dries quickly and withstands moisture, while being resistant to sunlight and daily use. Its main disadvantage is that it may not be as soft to the touch as other fabrics.