It’s time to finally put sleepless nights and groggy mornings to rest for good with a new Casper mattress. Using a combination of multiple foams and a breathable design, the Casper mattress helps you sleep cool and comfortably with just the right amount of sink and bounce. But don’t just take our word for it, try a Casper mattress for 100 nights as part of their sleep-on-it trial. Plus, Cool Material readers can save $50 on the mattress with code COOLMATERIAL. It’s time to get better sleep.