Human beings are not like some animals. we are suppsed to be awake during the day, and asleep at night Most lights in our hould be. Doctors say that the brain gets confused as it thinks you should be wide awake whan you should really be fast asleep. Try to avoid very bight lights just before you go to bed. One simple solution is to install a special switch that enabkes you to choose exactly how bright you would like the light to be