The Casper Insert - King/California King

DETAILS The down duvet is inspired by performance outerwear to provide year-round comfort and warmth. ABOUT CASPER Casper was created to re-imagine sleep from the ground up, beginning with its obsessively engineered, outrageously comfortable mattress. All of Casper’s sleep products are developed in-house by the company’s award-winning R&D team, including its airy sheets, pillow-in-a-pillow, and inventive Lounger and Layer designed exclusively for Target. Casper was recently named one of Fast Company's Most Innovative Companies in the World and its eponymous mattress was crowned one of TIME Magazine's Best Inventions. FREQUENTLY ASKED QUESTIONS What’s the fill power? Fill power refers to how much space a single ounce of down will occupy at its maximum loft — or in other words, is a measure of its insulating power. The Casper down duvet has a fill power of 600. Can I use the duvet with my Casper sheets or duvet cover? Absolutely, the products work seamlessly together. We designed the loops on the duvet to be used with the corner snaps of the duvet cover. You can also use the Casper duvet with any compatible duvet covers — but we recommend taking advantage of ones with corner loops! What does all-season mean? The Casper down duvet is designed for year-round comfort, so there’s no need to swap in and out with the seasons. Sleep on it, lounge on it, dream on it — if you don’t love it within 100 nights, you’ll get a full refund. Visit Casper's website for full warranty details.