You’re going to need a serious sleeping bag if you’re going to be sleeping outdoors, surrounded by snow in the dead of winter. While there are plenty of reasonably priced options that will capably keep your body heat in for most situations, why not spend an exorbitant amount of money to ensure that you’ll stay toasty if you happen to one day find yourself setting up camp in the planet’s polar regions? REI’s $700 Marmot CWM EQ sleeping bag is rated safe at temperatures as low as -40 degrees Fahrenheit. It’s waterproof, it’s filled with goose down and it has an elaborate set of flaps to keep your head and face both warm and comfortable. It’s also easy to extricate yourself from, a handy thing when there’s a polar bear sniffing around outside. This thing is so comfortable, it might make you give up on bed-sleep in your very own home.