Myself I found drinking caffeine after 12 noon kept me up. If you drink caffeine experiment with cutting it off earlier. Also, when it is late, and you feel h

Myself I found drinking caffeine after 12 noon kept me up. If you drink caffeine experiment with cutting it off earlier. Also, when it is late, and you feel hungry, it is often your brain trying to stay awake and desiring calories to continue. My sleep is much better when I can stop caffeine by noon and finish eating by 6 PM.