What do I do when tired

Now if you are tired in Japan, what do you do?  You can rest or sleep to fix being tired.  Resting as understood by a native speaker would mean sitting down, while sleeping is really just that, sleeping.


I need to rest.
休まなくちゃいけない。

I need to sleep.

ねなくちゃいけない。
寝なくちゃいけない。
寝るしなければいけない。

Feeling Tired In Japanese

One of my cognitive stumbling blocks when going from English is to express being tired, which is quoted from Mac OS X Dictionary:

tired |tīrd|
adjective
in need of sleep or rest; wear

In Spanish we have SEUÑO and CONSADO, and in Japanese we have NEMUI and TSUKARETA.

Here's different usages in Japanese:

(1)
運動したから、疲つかれた。
After doing exercise, I am tired.

(2)
薬を飲んだので、眠ねむい。
I took medicine, so I feel tired now.

(3)
花粉のせいで眠い。
The pollens cause me to feel tired.

(4)
昨日、暑くて眠れなかったので、疲れた。
Because last night was so hot, I couldn't sleep, so now I am tired