敷布団

1. Origins, structure, and basic meaning

• Structure: 敷布団, read しきぶとん, is the thick futon mattress spread on the floor beneath the sleeper.
• Basic usage: It is bedding that may be aired in the sun or placed with 床に敷く before sleeping.

2. Common pitfalls and similar expressions

• Bedding placed on the floor
  • This is the thick futon bedding spread on the floor beneath the sleeper. Its position and function differ from bedding used as a cover.