Get it here: These classic and comfy plaid flannel pajamas are the warmest set we recommend, and they come in one of the widest size ranges we tested. Plus, they have pockets. These flannel pants are the softest we tried and feel almost weightless—they’re lighter and better for sleep than similar jersey styles. The plaid prints are classic for winter.
"Double L"? Seriously?
Then, what are the warmest flannel you have tried? A really heavy weight 100% cotton flannel would be of great interest.