Researchers from the Walter Reed Army Institute of Research’s Behavioral Biology Branch have developed an infographic to provide sleep hygiene practices for optimal warfighter alertness under extreme weather and seasonal light variations. The ramifications of sleep deprivation are significant for warfighter readiness: the Behavioral Biology Branch’s 2022 study reported that soldiers with inadequate sleep were more than twice as likely to report a health problem, and those reporting cold weather sleep disturbances were more than five times as likely to report a health problem.