Pillows haven’t fundamentally changed much over the millenia. They’re soft, squishy things you put your head on. But do you know what pillows have been missing? Sound.  Fret no more, for the $300 Flexound Humu solves this glaring omission. Fully funded on Indiegogo and expected to ship in September, it’ll allow you to fall asleep to the sounds of drum ‘n’ bass, grindcore, and mumble rap vibrating through your cranium. Seriously though, I found myself appreciating this musical pillow more than I expected to. Though it works great with music, it really shines with movies and games. And despite some qualms, it…

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