YOU SAID:
I hope you get eight hours of sleep tonight
INTO JAPANESE
今夜は8時間睡眠がとれるといいですね
BACK INTO ENGLISH
I hope I can get 8 hours of sleep tonight.
INTO JAPANESE
今夜は8時間眠れるといいのですが。
BACK INTO ENGLISH
I hope I can sleep eight hours tonight.
INTO JAPANESE
今夜は8時間眠れるといいのですが。
BACK INTO ENGLISH
I hope I can sleep eight hours tonight.
That didn't even make that much sense in English.