Bob Garfield and Mike Vuolo discuss the energetic history of the word sleep.Lexicon Valley is brought to you by The Message, an original science fiction podcast from Panoply and GE Podcast Theater. All of Season 1 is available now, so listen and find out why a 70-year-old alien recording seems to be killing people. Search for The Message on iTunes.Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign upfor a free trial today at <a href="http://www.slate.com/podcastsplus">www.slate.com/podcastsplus</a>.Twitter: @lexiconvalleyFacebook: facebook.com/LexiconValleyEmail: <a href="mailto:lexiconvalley@slate.com">lexiconvalley@slate.com</a> Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

Sleeping Hobos in a Tent, Rush 'Em!

A feed from the Slate podcast network featuring episodes with enlightening conversations, opposing views, and plenty of healthy disputes. You'll get a curated selection of episodes from programs like What Next, The Waves, and the Political Gabfest, with deep discussions that go beyond point-counterpoint and shed light on the issues that matter most.