YOU SAID:
A cat who has green beautiful eyes is in a sleep.
INTO JAPANESE
緑の美しい目をした猫は、睡眠です。
BACK INTO ENGLISH
Beautiful green eyed cat is sleeping.
INTO JAPANESE
美しい緑色の目をした猫は寝ています。
BACK INTO ENGLISH
Beautiful green eyed cat is sleeping.
That didn't even make that much sense in English.