1. Cherries
Fresh and dried cherries are one of the only natural food sources of melatonin, the chemical that controls the body's internal clock to regulate sleep. Researchers who tested tart cherries and found high levels of melatonin recommend eating them an hour before bedtime or before a trip when you want to sleep on the plane.
2. Bananas
Potassium and magnesium are natural muscle relaxants, and bananas are a good source of both. They also contain the amino acid L-tryptophan, which gets converted to 5-HTP in the brain. The 5-HTP in
turn is converted to serotonin (a relaxing neurotransmitter) and melatonin.
Carbohydrate-rich foods trigger insulin production, which induces sleep by speeding up the release of tryptophan and serotonin, two brain chemicals that relax you and send you to sleep..
4. Oatmeal
5. Warm milk
Like bananas, milk contains the amino acid L-tryptophan, which turns to 5-HTP and releases relaxing serotonin. It's also high in calcium, which promotes sleep.