It was once believed that as we age, we start to need less sleep. It's now understood that we may have more difficulty sleeping due higher sensitivity to circadian rhythms (meaning once we're awake, it's more difficult to fall back to sleep), but sleep is just as important.

Here are some tips for getting a good night sleep at any age:

Develop a bedtime routine - go to sleep and wake up around the same time daily. Before turning off the lights, read for 30 minutes, listen to a guided meditation or a pod cast.
Create a calm environment - set a comfortable temperature and make sure sound and light is blocked out.
Exercise daily - Exercising in the morning helps to reset your circadian rhythms.
Keep a journal by your bed and write down any bothersome thoughts or "to-do's" keeping you awake.