"Flannel sheets" are a type of bedding that is made out of a soft and fuzzy fabric called flannel. They are very warm and cozy, making them great for cold weather or keeping comfortable at night. Full definition
The perfect bedding solution for every young dog - lover, our cozy flannel sheet set will give them a reason to look forward to bedtime. (potterybarnkids.com)
We have a good set of flannel sheets for winter and a quality set for the rest of the year, I think 500 thread count. (theinspiredroom.net)
If you need to, you should register for cool cotton sheets for the warm months and warm, fuzzy flannel sheets for when it gets cooler. (babygaga.com)