Calcium-fortified soy milk boasts two sleep-boosting nutrients: tryptophan, which increases the snooze-inducing serotonin in the brain, and calcium, which helps your body use the tryptophan to manufacture melatonin, another natural sleep aid.
Best bet: Heat it up a bit—some people find a warm drink is more relaxing than something straight from the fridge.
Other sources of calcium: Milk, cheese, yogurt
Try this: Use soy milk to make instant pudding, and then layer with fruit and fat-free whipped topping for a bedtime parfait, suggests Holly Clegg, author of the Trim & Terrific cookbook series. (http://thehealthycookingblog.com