Answer:
Yes you can, as long as it is bare minimum amount of hours.
Step-by-step explanation:
It is better to have more sleep though, because then your mind is rested and ready for the day. Trust me, I've been going to bed really late and try to get up early, and it doesn't work out that much. Also, using a LOUD alarm clock can help with waking up early, or one that increasingly gets louder.