In our pursuit of healthy sleep, many of us try to follow the mandates of sleep hygiene. Keep the bedroom cool and quiet, switch off electronics, and avoid eating and drinking before bed. But what if we’re hungry, or need to have a late dinner? Which foods are safe to eat close to bedtime, and which ones should we avoid? Can certain foods and drinks actually help us sleep? Studies show that some foods and drinks contain compounds that support healthy sleep, while others promote wakefulness.