I've tested more than 30 pillows as a home and kitchen editor, and the best overall is on sale for Prime Day

For Prime Day, you can save $15 off the Coop Sleep Goods Original Pillow, our top-rated pillow. The customizable pillow comes with a 100-night trial.

When you buy through our links, Business Insider may earn an affiliate commission. Learn more

Some of the best Prime Day deals are practically tradition at this point. For our team, one Prime Day pillow deal we look forward to seeing every year is a rare discount on our favorite pillow: the Coop Sleep Coops Original Pillow. Like clockwork, this old faithful 20% discount has come around again this year, and you'll have just two days to scoop it up. For more deals, check out all the currently live home and kitchen lighting deals.

As Business Insider's resident home editor, I've tested more than 30 pillows (and counting) for our guide to the best pillows, and I've yet to find a pillow that's better than the Coop Sleep Goods Original Pillow. But you don't have to just take my word for it: at least five other Business Insider reporters and editors have contributed positive insights for our Coop Pillow review over the years. Check the deal out below and read on for more about what we love about this pillow.

What makes this pillow so special is that it's completely adjustable to suit your individual sleep style. Unlike most pillows, which have a static fill, the Coop pillow is filled with shredded memory foam. You can access the entire inner cavity of the pillow through a side zipper and remove fill to find your perfect loft and support. For those who need even more support, each pillow comes with a pound of extra filling in a separate bag that you can add to the pillow as needed.

Finding your perfect loft will take some trial and error of course. Fortunately, the pillow comes with recommendations to start with. These are based on your sleeping position: less fill for stomach sleepers, moderate fill for back sleepers, and the most fill for side sleepers.

Perhaps most importantly, the pillow comes with a 100-night trial so you can decide if it's right for you. With nearly three months to test out the pillow before you commit to it, this is basically a risk-free deal worth taking advantage of this Prime Day.

Shopping for more great Amazon Prime Day deals? Check out our roundup of all of the best deals here, or browse Amazon's website for more.