The warmest comforters for winter can be the difference between a blissful night of rest and shivering until your alarm signals it’s time to get your day started. The insert’s antimicrobial cotton cover is equipped with corner loops, should you want to add a duvet cover, which Lee recommends to keep the bedding fresher between washes. In its most substantial heavyweight version, it’ll give your bed an ultra-plush look, whether you choose to let it stand on its own or pair it with your favorite duvet cover. Ostermoor’s duvet is another sleep-tested pick from Alpert, who’s used to winter temperatures dipping below zero in her hometown of Cleveland. Ikea is another reliable resource we recommend in your quest for your warmest sleep setup yet.