Unbalanced sleeping habit

Last week was a very busy week for me, projects to do + stupid hotels to book, i ended up going to bed almost at 2 every night and woke up at 7, sometimes 8. So when the weekend came, i took the my chance to wake up late. But now i know that this is a very bad habit, it harms your body, so please, don't try this at home!! WHY?

Saturday morning, i woke up at 11 a.m. after sleeping for 10 hours. Result : headache for 1 whole day.

This morning, i woke up at 10.30 am, also after sleeping for 10 hrs. Result : neck pain. At first it wasn't so serious, but i was crazy and went to play basketball. Shit, now i can't even turn my neck.

Moral of the story : have a more regular sleeping habit.

P.S.: But WTF, compared to many people this is quite regular already!!!