| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | sheets | Japan | Futons are commonly used instead of sheets for sleeping, and they are often aired out and sunned to maintain cleanliness. | 1 |
| 2 | sheets | Japan | Traditional bedding often consists of a futon placed directly on tatami mats, with no separate use of sheets as in Western bedding. | 1 |