Ah, sleep: nighttime bliss when you escape from your daily worries, refresh your body and mind, and star in an incomprehensible dream, and then wake up wondering, what was that all about? But it’s only bliss if you can get a good night’s sleep.

As we age, how we sleep changes. We tend to go to bed earlier — which can interfere with your busy social calendar! — and wake up earlier than younger adults. Sleep tends to be shorter and lighter, and you may wake up more often during the night.