YOU SAID:

When you go to sleep at night, be sure to get at least eight hours to wake up refreshed and alert the next day.

INTO JAPANESE

夜寝るときは、少なくとも8時間空けて目覚め、次の日に注意を喚起してください。

BACK INTO ENGLISH

When you go to bed at night, wake up at least 8 hours and call your attention the next day.

INTO JAPANESE

夜就寝するときは、少なくとも8時間は目を覚まし、翌日に注意を呼びかけます。

BACK INTO ENGLISH

When you go to bed at night, stay awake for at least 8 hours and call attention the next day.

INTO JAPANESE

夜に就寝するときは、少なくとも8時間は目を覚まし、翌日に注意を呼びかけます。

BACK INTO ENGLISH

When you go to bed at night, stay awake for at least 8 hours and call attention the next day.