Insomnia is the “hidden wound” that American servicemen and servicewomen are bringing home from the wars in Afghanistan and Iraq, according to an article by Van Winkle’s, which says the condition is “largely unnoticed, under-prevented, and untreated.”

The article argues that post traumatic SLEEP disorders are the new “PTSD” plaguing the US military.

In fact, the article cites a RAND Corporation study that found 48.5% of servicemembers reported poor sleep quality, which means about 900,000 of the two million US veterans of the wars in Iran and Afghanistan may have significant sleep disturbances or sleep disorders, the Van Winkle report says.