Any Suggestions

 So lately I have beeen coming late to school and it gets really irritating. I go to sleep around 12 when I'm really tired, 2 or 3 when I'm bored with myself. So I wake up, but I dont get all the way up. Sometimes I lay there for 20 mins, or I will get up to take a shower. Sometimes it takes me 30 mins to get dressed. I want to know does anybody have any good suggestions for me. Any comment is welcome!!!!