YOU SAID:
hello sometimes I sleep
INTO JAPANESE
こんにちは時々私は寝る
BACK INTO ENGLISH
Hello sometimes I sleep
INTO JAPANESE
こんにちは私は眠る
BACK INTO ENGLISH
Hello I am sleeping
INTO JAPANESE
こんにちは私は寝ている
BACK INTO ENGLISH
Hello I am asleep
INTO JAPANESE
こんにちは私は眠っている
BACK INTO ENGLISH
Hello I am asleep
That didn't even make that much sense in English.