The Dangers of Sleeping-In
I don't want to sound like your parents, but establishing a regular bedtime could prove beneficial for you. Recent research has discovered a correlation between irregular sleep patterns and an increased risk of atherosclerosis (thickening or hardening of the arteries caused by a buildup of plaque in the inner lining of an artery).
Now, this isn't about prescribing an exact bedtime or a specific number of hours you should sleep (although it's generally recommended to aim for 7 to 9 hours). The key is to establish a consistent schedule that determines both your bedtime and the duration of your sleep.