By the time we are 50, we will, on average, have devoted about 5,110 nights (7.5 hours nightly) to sleep, or at least attempting to get enough of it in a way that leaves us feeling rested, refreshed and with sufficient energy to engage our daily routines. In my last blog (http://bit.ly/SleepingTime), I introduced information that invites us to question conventional folk wisdom about what good sleep is “supposed” to look like. While it is clear that the form sleep takes each night can and often does vary from person to person, or even the same person over time. Still, despite this variability, there is little question of what happens when we don’t get what our body needs in the way of sufficient sleep.