寝袋

1. Origins, structure, and basic meaning

• Structure: 寝袋 is read ねぶくろ.
• Basic usage: It refers to a bag-shaped piece of bedding used for sleeping outdoors or in places such as mountain huts.

2. Common pitfalls and similar expressions

• Sleeping in one
  • 寝袋で眠った means sleeping in a sleeping bag.
• Care after use
  • 寝袋を広げて乾かす means spreading out a used sleeping bag to dry.