Every entrepreneur has a sleepless night every once in a while. But you still need to bring you’re A-game. Your first inclination might be to drink a big cup of coffee, but the best remedy is more counterintuitive. Be strategic with your coffee or energy drink. It takes about 15 to 30 minutes for you to feel the effect of the caffeine, and the benefit will last for three to four hours. But when it wears off, you might crash, so be sure to time it right. Until then, go for a big glass of water instead to stay hydrated. When you’re feeling sleepy, you may forget to eat, but having small snacks throughout the day may be just what you need to keep you moving. Stick with healthy snacks like fruits and vegetables, and carbs, like bagels and toast, rather than heavy foods, which may put you to sleep. Take a brisk walk during your break time to get some oxygen in your lungs and to your brain. That fresh air will boost your brain power and make you feel less tired.