Walshyyy

At night i go to bed but can't sleep; I may fall asleep for about an hour. I can stay awake till 8AM the next day. Then i have to get back in routine. The routine lasts for about 2 nights then one night i can't get to sleep again. I can be exhausted but my body won't rest and shut down.
Because of this whenever i do get to sleep at a normal time such as 9-10PM i don't wake up till 3PM even though people have been trying to wake me up since 7AM.

Its like my body can stay awake longer than usual and sleep longer than usual.
Is this a sleep condition? Help me please because it affecting my college work.

Edit: I forgot to mention. I always have had vivid dreams since i was young. One regular one is where i can't wake up, i know i'm dreaming but my body won't wake up. It is a very scary dream and i find my self struggling in my bed. I can feel myself being pulled to the bed. I have always had vivid dreams but that one is the worst.
Another one that involves not being able to wake up is one where i think i am awake but when i go out the door i'm not at home. It happens like five times in the dream and i can't wake up in the right house.

I have even dreamt for a short amount of time even if it is five minutes. i remember multiple times when i was a child i would go get something from downstairs such as a apple and take a bite, but it on my bedside put my head to the pillow and the apple was gone but it was like it actually happen. As a child it was so frightening.