Polite form:
どう寝たなの?
(Dō neta na no?)
Casual form:
どう寝ましたか?
(Dō nemashita ka?)
bed
A Japanese platform bed is a platform bed characterized by simple, minimalist design with an elegant zen quality. The bed flows seamlessly with its surroundings. http://www.haikudesigns.com/japanese-bed.htm
The word "futon" comes from the Japanese term for a cushion bed, which is shikibuton or shikifuton.Another type of Japanese bed is the tatami (raised platform bed).
The design of a Japanese platform bed is very unique. A Japanese platform bed is typically very modern and has a lifted and incredibly comfortable look to it.
ベッド is the word for bed. I googled it.
He went to bed with his breeches on.
Japanese bed frames are now available. They are available in King and Queen sizes. With the special design of Japanese bed frames there is now no need to use a box spring if you have one.
Duncan was feeling relaxed and content before he went to bed.
tired
It's (Japanese) slang for wetting the bed.
Futon
It is called a 'futon.'