September 11, 2007 Have you ever noticed that on some mornings you wake up more easily than others? These are the mornings when you wake up in the light, "almost awake-time" of your sleep cycle. The bad groggy mornings are when you have awakened from the deep sleep part of the sleep cycle. We've previously encountered technology that takes advantage of this phenomena in the form of the aXbo "sleep phase alarm clock" and now there's the wrist worn SleepTracker personal alarm watch. The SleepTracker tracks sleep cycles and allows you to set your "wake-up" time to coincide with moments of light sleep, meaning you wake up feeling more alert.