There are a variety of underlying health concerns that might be the cause of your nighttime awakenings. 

Discuss nighttime waking medications with your doctor. Fathima believes drugs and stress might impact sleep.

Mental health can affect sleep as much as physical health. Depression and anxiety can disrupt sleep.

While a nightcap might make it easier to fall asleep, it also has the potential to jolt you up.

It's possible that the reason you can't get back to sleep at night is related to the way you go to bed earlier each night. 

Caffeine—from coffee, tea, chocolate, or soft drinks—may keep you awake at night, especially if you drink it late in the day. 

Diet affects health and sleep. Fathima suggests some dining faults that might cause your frequent night wakings.