For the past three years, I’ve watched my husband endure the sleep deprivation that comes with being a resident.  In addition to having less time for sleep in general, his sleep is often interrupted and his schedule constantly changes, forcing him to sometimes attempt sleep in broad daylight.  Personally, I can’t imagine trying to function on such poor sleep.  Six months ago, I shared an app with him that has made a huge difference in his ability to make the most of the short amount of time he does have to sleep.