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Partner: Sponsor

You’re going to spend one third of your life sleeping. You owe it to yourself to spend that time on a Casper mattress. Designed by humans, for humans, the Casper Mattress has been engineered for outrageous comfort. With a combination of multiple memory foams and a breathable design, you’ll get just the right amount of sink and bounce while also staying cool. The only way to know  what you’re missing is to try it, which is why Casper has a 100 night sleep-on-it trial. Plus, Cool Material readers can save $50 on the mattress with code CM50. It’s time to get better sleep.

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If you’re anything like us, you have quite a few quality watches in your collection. And yet, it still always feels like there’s another Rolex, IWC, or Omega missing. Enter StockX, the best place to buy and sell luxury watches. Whether you’re looking to pick up a new favorite, or sell one of your own pieces to make room, StockX has hundreds of different watches from all of your favorite brands. It’s time to upgrade your watch game. Sign up today and they’ll even give you $100 off your first watch purchase.