Is it normal to be EXHAUSTED after graduating from college?

I graduated two weeks ago and since then I have needed to sleep like 10-12 hours a night just to be able to get out of bed. I know this is a luxury because my parents let me move back home and I’m currently interviewing for jobs, so right now I don’t really have anywhere to be. I feel bad about sleeping so much and not having the energy/drive to workout like I used to, but also it just feels so good to not have to be anywhere/do anything. I guess this is my vacation but why am I so damn sleepy?!