Sleeping bags are insulated bags designed to provide warmth and comfort while sleeping outdoors, such as during camping trips or overnight adventures. They are available in a variety of styles, sizes, and temperature ratings to suit different needs and climates.

Sleeping bags feature a zipper system that allows for easy entry and exit. Some bags have a two-way zipper, which enables ventilation options by opening the bottom for airflow. The zipper is often covered by a draft tube or baffle to prevent heat loss through the zipper teeth.