YOU SAID:

A well slept child is a well kept child.

INTO JAPANESE

よく眠った子供は手入れの行き届いた子供です。

BACK INTO ENGLISH

A well-sleeping child is a well-maintained child.

INTO JAPANESE

よく眠っている子供は手入れの行き届いた子供です。

BACK INTO ENGLISH

A well-sleeping child is a well-maintained child.