The Snuggie. The fleece blanket with sleeves.
You might think it's ridiculous, and yes, it does look a little silly and somewhat not useful at first glance, but it's so wonderfully warm and comfortable and necessary, especially this time of the year. Holidays = cold weather = endless blankets and sweaters and cups of tea and coffee and hot cocoa. As it gets colder and colder outside, all you want to do is curl up in bed or on the couch with friends and family, or alone with a good read and a hot beverage.
Since the Snuggie has sleeves, your arms and hands don't have to suffer as you try to read or flip through Instagram or write a paper or watch TV. You don't have to sacrifice the functionality of your arms and hide under the blankets to stay warm and cozy! Regular blankets are good on your lap or if you're lying down, but it's hard to keep on your torso. Snuggies make for a very nice extra blanket on the bed - not only is it warm, but so many people flip through their phone (or read a book) and have to do so completely buried under the blankets.
It's a great gift for someone who's always cold, for your bookworm friend, and of course, for yourself on those cold and maybe lazy days. Call it ridiculous, but honestly, who doesn't love being cozy and warm? Seriously, why wouldn't you want one of these?