A news report from Lifehacker suggests that sleep should be scheduled like an appointment to ensure individuals get a full night’s rest.
Treat your bedtime like an appointment, with the same urgency and importance that you give your work-repeated appointments. Determine what time you need to get up and count the hours backwards to allow for the seven or eight hours of sleep your body needs. Like a flight or important meeting, your sleep should be thought of as the fixed point of your day — everything else should be adjusted as needed.