A cup of coffee or tea or a glass of soda are quick pick-me-ups that might affect your sleep. Even small amounts of caffeine (like the amount in a piece of chocolate) can affect your sleep, especially if you are sensitive to caffeine. Try eliminating all caffeine-containing beverages. If you feel and sleep better after two weeks of being caffeine-free, then avoid caffeine permanently. You can try adding back one or two cups after the two-week trial, but cut back if sleep problems reappear.
As for alcohol, a drink might make you sleepy at first, but in the end you'll sleep less soundly and wake up more tired. Alcohol and other depressants suppress a phase of sleeping called REM (rapid eye movement) where most of your dreaming occurs. Less REM is associated with more night awakenings and restless sleep. One glass of wine with dinner probably won't hurt, but avoid drinking any alcohol within two hours of bedtime.
Sleep-Friendly Table Tactics
Big dinners make you temporarily drowsy but prolong digestion, which interferes with a good night's sleep. It's best to eat your biggest meal before midafternoon and have a light evening meal of 500 calories or less. Include some chicken, extra-lean meat or fish at dinner to help curb middle-of-the-night snack cravings.
Spicy foods can contribute to sleep problems: Dishes seasoned with garlic, chilies cayenne or other hot spices can cause heartburn or indigestion. Gas-forming foods and hurried eating also cause abdominal discomfort, which in turn interferes with sound sleep.
A high-carbohydrate snack, such as crackers and fruit or toast and jam, triggers the release of a brain chemical called serotonin, which aids sleep. And although the traditional glass of warm milk, a protein-rich beverage, probably doesn't affect serotonin levels, the warm liquid soothes and relaxes you and makes you feel full, which might help facilitate sleep.
Curbing the Midnight Snack Craving
Do you awaken in the middle of the night, unable to fall back to sleep unless you eat something? These midnight snack cravings may be triggered by hunger, or they may just be habit. In either case, your best bet is to break the cycle. Try eating more during the day, and stop rewarding your stomach by feeding it every time it wakes you up. Instead, read a book, drink a glass of water or ignore the craving. It takes up to two weeks to break a midnight snack habit.
Exercising to Relieve Stress
Stress is a common cause of insomnia. Often, relieving tensions and anxieties eliminates sleep problems. One tension reliever is exercise. Physical activity helps you cope with daily stress and tires the body so it is ready to sleep at night. Vigorous exercise should be done no closer to bedtime than six hours; mild exercise should be done no closer to bedtime than four hours.