Excess fiber
Some vegetables, such as broccoli, pumpkin, or cabbage, are hard to digest because of excess fiber. The stomach takes longer to digest and that affects rest.
Cereals and sweets
Excess sugars in the blood make it more difficult to fall asleep.
Red meat
Red meat contains tyrosine, which stimulates the brain and keeps it active and awake.
Fat
Foods rich in fats activate hypocretin, an amino acid that interferes with sleep-wake cycles.