Gradisar et al. (2011) noted that
out of 41 published articles examining
adolescent sleep, only one
(Wolfson et al., 2003) used actigraphy
to provide a description of adolescent
sleep parameters. Actigraphy is a
method used to measure sleep in the
home environment and is considered
to be a reliable measurement for
sleep-wake studies in both children
and adults (Sadeh, Raviv, & Gruber,
2000). The sleep parameters of adolescent
populations should be examined
using both actigraphy and a diary to
fully describe the sleep of this age
group; without this information,
sleep norms will not be fully developed.