Falling Asleep Easily

For the past week I’ve been falling asleep really easily for no reason. I have school and I have quite a bit of work but nothing to make me so tired I sit in bed and fall sleep. One day this week I don’t remember the few hours before I fell asleep. I just did. And I always wake up still at night. Like I go to sleep at 6 and wake up at 8.

Anyways I’m always falling asleep easily now. I’m so confused why. I would like some help because it means I had to put off homework until the next day over and over again.