noun
summer bedding; summer futon
Refers to lightweight futons or bedding specifically designed for hot summer nights, often made of cooler materials.
暑くなってきたので、冬布団から夏布団に替えた。
It's getting hot, so I switched from my winter futon to my summer futon.
この夏布団は通気性が良くて、寝苦しい夜でも快適だ。
This summer bedding is breathable and comfortable even on sweltering nights.
General term for Japanese-style bedding; 夏布団 is a seasonal variant.
Compound of 夏 (natsu, 'summer') and 布団 (futon, 'bedding').