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Between health forums, open-access journals and, ahem, forward-thinking websites devoted to sleep journalism (it is a thing), the internet is anything but short on rest-related tips, tales and studies for your reading pleasure. But sometimes reading isn't in the cards, so here are five informative videos to sate your interest in sleep and the discussion surrounding it.

How Much Sleep Do You Actually Need? (ASAP Science)

An overview of research on that #hardeight. How little is too little? How much is too much? 

Why Do We Sleep? (TED)

Russell Foster, a British circadian neuroscientist, dishes on the sleeping brain and what we know (and don't know) about our favorite neurobiological mystery.

A Rational Defense of Sleeping Alone (The Atlantic)

Health editor James Hamblin, M.D., hosts a video series, called “If Our Bodies Could Talk,” and the whole thing’s entertaining and insightful. Start with his discussion of banishing bedfellows; then let autoplay dictate your afternoon. 

One More Reason to Get a Good Night’s Sleep (TED)

As part of a University of Rochester research team, Neuroscientist Jeff Lliff helped discover the brain's cleansing system, called the “glymphatic system.” In this TED talk, Iliff explains how cerebrospinal fluid (CSF) helps clear away brain waste during sleep.  

Why Don’t Sleeping Bats Fall Down? (SciShow)

Learn how a special mechanism in bats' feet helps them (literally) hang out after they pass out. 

Lucid Dreaming (TEDx)

Tim Post, founder of the lucid-dreaming training organization Snoozon, spends his time teaching people how to lucid dream. Here's a crash course.

New Research on a Good Night’s Sleep (New York Times & PBS News Hour)

UCLA sleep scientist Jerome Siegel talks about his research on contemporary hunter-gatherer societies and the misconception that modernity ruined sleep.