Best Prime Day pillow deals: Up to 47% off favorites from Coop, Purple, Eli & Elm

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These are the best Prime Day pillow days, featuring our favorite tested pillows from Coop, Eli & Elm, Purple, and more.

Eli & Elm; Coop

When was the last time you replaced your pillows? If you're racking your brain, trying to remember, it's officially time to upgrade. Amazon Prime Day is the best time of the year to find the best deals of the summer on a selection of the best pillows.