A "flannel duvet" refers to a bedding item made of a soft, warm material called flannel that covers and protects a comforter or quilt on a bed. Full definition
Give them a reason to look forward to bedtime with our oh - so - cozy flannel duvet cover in classic charcoal. (potterybarnkids.com)
Give them a reason to look forward to bedtime with our oh - so - cozy flannel duvet cover featuring iconic characters Rudolph ® and Bumble ® from Rudolph the Red - Nosed Reindeer ®. (potterybarnkids.com)
Bring a cool, contemporary look to your bedroom with the Tribeca Living Stripe 170 GSM Printed Flannel Duvet Cover Set. (bedbathandbeyond.com)