A very happy Monday — perhaps you have the day off work and you're at home snuggling with Abe, George, and the gang — and welcome to week seven of "Hiber-Nation," a special series of posts featuring home accessories and other odds and ends geared to make housebound-in-the-winter life a touch more bearable.

Now that I've touched down on windowsill gardening, entryway organization, and methods of keeping furry flatmates preoccupied during extended cold snaps, it's time to turn to the closet to spotlight a crucial item that anyone who spends a fair amount of time lazing around the house during the winter months should own at least one of: the humble hooded sweatshirt.

So, I'm a couple weeks late on this one but Feb. 7 marked the arrival of National Sweater Day, WWF Canada's annual Granny-approved event that serves as a reminder as to how cranking down your household thermostat just a notch or two and donning a sweater can help you save big on winter heating bills while reducing emissions. In fact, WWF Canada notes that if every Canadian lowered the heat by 2º C this winter, it would help to reduce greenhouse gas emissions by 4 millon tons. So whether you're Canadian or simply a big fan of Bryan Adams and poutine, you too can "turn down the heat and turn up the sweater" any time that there's a chill in the air. Below, you'll find a few stylish and sustainable hoodies from the likes of Nau, Patagonia, Edun and other eco-conscious clothiers to help you do so.

Whisky Bottle Unisex Hoody by Branch Handmade @ Supermarket ($38)

Men's Hoodlum Pullover Hoodie @ Alternative Apparel ($54)

Tie Hoodie Cardigan @ Stewart+Brown ($58)

Hooded Raglan-Sleeve Cardigan in Plaited Organic Cotton @ Eileen Fisher ($278)

Women's Zip Hoodie in Aluminum/Aqua @ Playback Clothing

Men's M2 Hoody@ Nau ($99)

Women's Long Button Hoodie @ United by Blue ($88)

Tureis Hoodie @ Rogan ($103.50)

Men's Colorblock Hoody by Edun @ Juno and Jove ($196)

Men's Hooded Monk Sweatshirt @ Patagonia ($79)

Matt Hickman ( @mattyhick ) writes about design, architecture and the intersection between the natural world and the built environment.

Hoodies: Hiber-Nation '13
Chilly today? Crank down the thermostat and break out that hoodie — a versatile staple that can help you save a few bucks on wintertime heating bills.