I’ll be horizontal until dinner. 


A: I’m home.
B: Welcome home!
A:I had a tough day today. I’m exhausted. I’ll be horizontal until dinner.

In this situation, what should you say ‘I’ll be horizontal until dinner.’ in Japanese?

Casual

B:夕食ゆうしょくまでちょっと休やすむね。

Note: This is not a word-for-word translation.


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A word-for-word translation

B:夕食ゆうしょくまで横よこになります。

It’s natural.

横よこになる means a situation where you lie down but don’t fall asleep completely, or at least you don’t intend to sleep, but just rest your body for a short time.

You can use this expression when you’re ill or tired and also when others are.
The latter example is 横よこになったら? which means that why don’t you lie down?

The Japanese 横よこ has several meanings.
This 横よこ means level, almost parallel to the ground, so you can use 横よこ in this context.

But be careful because ‘horizontal’ in Japanese is basically translated as 水平すいへい instead of 横よこ.