Inside a Madigan sleep study

U.S. Army Sgt. 1st Class Bobby M. Scharton, a platoon sergeant with 17th Fires Brigade, 7th Infantry Division, lies down during a sleep study at Madigan Army Medical Center, Joint Base Lewis-McChord, Wash., Nov. 22, 2013. Sleep technicians connect 26 sensors to patients that measure eye and muscle movements, brain activity, heart rate and breathing.