  Light sleep is a sleeping period which occurs within each hour during the
sleep. This is the period when people are closest to awakening. With this being
the case people tend to move more frequently and aggressively during these
periods. The characteristics of sleeping stages, detection of light sleep
periods and analysis of light sleep periods were clarified. The sleeping
patterns of different subjects were analyzed. In this paper the most suitable
moment for waking a person up will be described. The detection of this moment
and the development process of a system dedicated to this purpose will be
explained, and also some experimental results that are acquired via different
tests will be shared and analyzed.
