I saw in another thread that you two suffer from insomnia, and I suspect that many more here do too. I generally avoid taking medicine if I can. With that said, here is part of an article that researched which foods can help with melatonon production (which helps you sleep)
When a person suffers from insomnia, her body may not be producing enough serotonin or melatonin to get adequate sleep. Certain foods stimulate the production of these chemicals, which help the mind and body relax and get to sleep. By making a habit of eating foods rich in tryptophan or melatonin close to bedtime, insomnia sufferers can get to sleep more quickly and stay asleep longer.
Cherries
Cherries are one of the only food sources of melatonin, an antioxidant that helps the body regulate circadian rhythms and sleep. The antioxidants contained in fresh, dried, or frozen cherries can give your body the melatonin boost it needs to get better sleep, especially when confronted with jet lag or insomnia. For best results, try eating a bowl of cherries one hour before bed.
Dairy Products
Dairy products like yogurt, milk, and cottage cheese contain the amino acid tryptophan, which helps the body produce sleepy-time serotonin and melatonin. Tryptophan is the building blocks the brain uses to create these sleep-inducing neurotransmitters, so the more you get, the more your brain has to work with. Try eating some low-fat yogurt or a glass of warm milk an hour before bedtime.
Complex Carbohydrates
You can make the tryptophan in dairy products more available to your brain by pairing them with a complex carbohydrate like whole-grain bread. The complex carbs will encourage your brain to release insulin, clearing the way for the tryptophan to be absorbed. Sound like complicated chemistry? It's not. Just remember to pair your cottage cheese with a piece of whole-grain toast for maximum sleep benefits.
Bananas
Researchers at the University of Wisconsin have found that potassium may be one of the elements responsible for deep, slow-wave sleep. Their research on fruit flies identified a gene regulating potassium flow as essential for fruit-fly sleep. While a link between potassium and sleep in humans has not been firmly established, foods like bananas which contain both tryptophan and potassium may be doubly good for sleep.[End article]
I'll also note that you can get a prescription for melatonin, but it will gradually lose its effectiveness over time. Taking the melatonin in pill form also encourages your body to stop producing it as much which causes a dependence on the pill to get any sleep. Don't take the pill unless it is for a short amount of time and prescribed by a doctor.