How long can a human being go without sleep?

　　人不睡覺能活多久？

　　He took a long time getting to sleep that night.

　　他那天晚上過了好長時間才睡著。

　　You'll feel better for a good night's sleep.

　　你晚上睡個好覺就會覺得好些。

　　You'll feel better after a good night's sleep.

　　你晚上睡個好覺就會覺得舒服些。

　　I'll feel better after a good night's sleep.

　　好好睡一晚，我就會覺得好些了。