Growing up, a bachelor uncle always sent a check before the holidays for my mother to use to buy our family gifts, usually toys or something she knew we wanted. One year she decided to use the money to buy the whole family nice flannel sheets. I'm pretty sure my sisters and I let out a collective, "Are you kidding me?" This did not seem like a fun gift. But, boy, did we sleep well that winter.
There are plenty of flannel sheet options in solid colors, but nice patterns are harder to find. And kid-friendly ones, even harder. Above are some to get you started.