There’s a lot of money to be made in the business of sleep. Take sunrise alarm clocks, fancy mattresses, REM-tracking wearables, and monthly deliveries of melatonin.

But should we really be investing this much in hopes of catching a few more Z’s?

In the final episode of season 8, we consult a bonafide sleep doctor on the matter and get a physician’s POV on a few questions keeping us up at night:

Why is there such a large market for catching some Z’s?
Can any of these products actually help us find rest? 
Why do we need to sleep?
What’s happening in our brains and bodies while we dream?

The Quartz Obsession is produced by Podcast Fast Track, with additional support from Jason Russum, Amy Perry, Liliana Zapata, Juan Palacios, and Lorena Caro. Our theme music is by Taka Yasuzawa and Alex Suguira. This episode was recorded at G/O Media headquarters in New York.

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