Holiday Equals More Sleep

I was so looking forward to this day. Today is a special holiday and that means uninterrupted sleep. Nope I am not sleep deprived, it's just that I miss sleeping in. I always have to wake up at 5:15 in the morning in order to wake up my son who should be preparing for school around that time. Then I have a hard time going back to sleep. I normally get headaches when I do because I need to wake up again this time to wake up my daughter. So today is pretty precious. I got to sleep in but not at the time that I planned to wake up. I woke up 2 hours ahead of the planned time. Not bad, even if I slept at 3 in the morning. I guess I'm not really made to sleep in anymore, does this go with age?