YOU SAID:
when you are sad and can't sleep
INTO JAPANESE
あなたが悲しいし、眠ることができないとき
BACK INTO ENGLISH
When you are sad and you can't sleep
INTO JAPANESE
あなたが悲しいと、眠ることができません。
BACK INTO ENGLISH
You can't sleep and you are sad.
INTO JAPANESE
眠ることができない、悲しい。
BACK INTO ENGLISH
Sadly, you can't sleep.
INTO JAPANESE
悲しいことに、あなたは眠ることができません。
BACK INTO ENGLISH
Sadly, you cannot sleep.
INTO JAPANESE
悲しいことに、あなたは眠ることができません。
BACK INTO ENGLISH
Sadly, you cannot sleep.
That didn't even make that much sense in English.