Food is one of the causes of insomnia. According to recent research, certain foods can cause restlessness and insomnia during the night. In addition to caffeine-containing products such as coffee and chocolate, spicy and fatty foods can also affect nighttime sleep. It is important to be careful when consuming these sleep-inducing foods for a more comfortable night's sleep. It is important to keep your caffeine intake under control for a better sleep. Here are 6 foods that cause insomnia at night...