Limit caffeine and other stimulants. Caffeinated beverages after lunchtime can interfere with sleep. Like caffeine, nicotine is a stimulant. Even secondhand smoke can interfere with sleep. And, chemicals found in chocolate, wine, and cheddar cheese can trigger heart palpitations in the night.
Limit intake to one or two servings at dinner or throughout the evening.
Although alcohol is a sedative, it can disrupt sleep. Don't go to bed stuffed or starved. But don't overeat. A big meal forces your digestive system to work overtime. You may feel drowsy at first, but could toss and turn all night.