Researchers are finding that longtime sleep deprivation can have devastating consequences, including chronic insomnia and psychological disorders. Especially vulnerable are downrange troops on repeated deployments, experts say. Army doctors now recognize that sleep-deprived troops can be a danger to themselves on the battlefield, with slower reaction times, fuzzy memories and impaired judgment. But as suicides continue to spike within the military and more servicemembers are diagnosed with PTSD, some researchers and doctors have focused on sleep deprivation as a possible root cause of those issues as well. Seeking better sleep - Stripes - Independent U.S. military news from Iraq, Afghanistan and bases worldwide