Skip to main content
. Author manuscript; available in PMC: 2009 May 9.
Published in final edited form as: Sleep Med. 2007 Mar 28;8(6):566–577. doi: 10.1016/j.sleep.2006.11.017

Figure 4.

Figure 4

An actogram of sleep-wake activity, recorded using activity monitoring from an individual with non-24-hour sleep-wake syndrome. Note the consistent delay in bedtime over the recording time.