Nearly two-thirds of Americans don't get a full eight hours of sleep per night. Now researcher Matthew Walker is sounding the alarm about what he calls “the silent sleep loss epidemic.” Walker has spent more than twenty years researching sleep and its impact on mental health and disease. Walker joins /"CBS This Morning/" to discuss what happens to the body when it doesn't sleep, why some people shouldn't nap at all and some tips for healthy sleep habits.

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Hosted by Charlie Rose, Norah O'Donnell and Gayle King, /"CBS This Morning/" provides a thoughtful, substantive and insightful source of news and information to a daily audience of 3 million viewers. The Emmy Award-winning broadcast features a mix of daily news, reporting on developing stories of national and global significance, and interviews with leading figures in politics, business and entertainment. Check local listings for /"CBS This Morning/" air times.

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