Futon
Bedding, Sleeping Mat, Duvet
noun
Put some cloth in a group and you get a futon. It’s just the kind of nice, soft bedding or sleeping mat you’d like to curl up on.
Keep in mind that this word is different from the English version. We’re not talking about sofa-beds for your dorm room here. In Japanese, your 布団 is the traditional bedding you lay out on the floor at night and put away in the daytime. 布団 can refer to the sleeping mat, the duvet that covers it, or both items as a set.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. The reading for 団 is the secondary reading that went with the kanji, though, so watch out for that. If you can figure out the meaning of this word, chances are you already know how to spell it, so carry that over to Japanese.
あー、今すぐ布団に入りたい！
Ah, I want to get into my duvet right now!
羽毛布団の洗い方、知ってる？
Do you know how to wash a down comforter?
干した布団のにおいは死んだダニのにおいなんだよ。
The smell of dried bedding is the smell of dead dust mites.