When you buy through our links, Business Insider may earn an affiliate commission. Learn more Flannel shirts are a true cornerstone of a cold-weather wardrobe, and rightfully so. They're ...

The top is basically channeling your favorite flannel shirt, just reimagined as the ultimate sleepwear—super soft and perfectly plaid with enough structure to keep you looking slick. Made with ...

Thick flannel sets that will keep anyone warm ... You could reasonably confuse the pajama shirt for a vacation-ready camp collar button-down, especially in the handsome dune shadow check pattern.