Cocooning yourself in a sleeping bag is all very snuggly, but have you ever tried dancing to gingangooly without unzipping yourself? It's not easy. In fact, unless you fancy caterpillaring around the campsite, trying to do anything other than sleep in a traditional sleeping bag (no nudging at the back) is virtually impossible. Step forward - and we mean that quite literally - the incredible Selk Bag.

As you can see, this revolutionary wearable sleeping bag is more of a suit than a bag, giving maximum mobility and keeping you warm as toast. Snuggled into a Selk you can move your limbs freely, stand up, walk, cross your legs, do the David Brent dance - whatever. Finding a comfy sleeping position is easy. Cramp, what cramp?

But it's not just about keeping warm on you next polar expedition or preventing your devil's-horn hand from freezing off at some festival campsite. The Selk Bag is ideal for loafing about in the house, especially if you're sick of eye-watering heating bills. Think of it as your new, improved dressing gown.

Invented by Chilean industrial designer, Rodrigo Alonso Schramm (not him again), the Selk features a cosy integral hood, plus reversible zips, so you can unzip your arms with ease whenever you need to shoo away polar bears, remove icicles from your nose or switch channels. Who'd have guessed dressing up as a futuristic Teletubby could be so practical.

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But what's it like in terms of cosy-ocity? Well its lining is made from soft-touch nylon with a polyester hollow fibre bonded filling. And whilst we're not entirely sure what that means, we do know that each Selk can withstand temperatures as low as 0°C. Brrr-illiant!

Machine washable, available in various new colours & sizes and featuring a reinforced crotch area(?) and higher quality zips, this innovative suit is set to become a must-have accessory for outdoorsy-types and couch potatoes everywhere. You'll never want to clamber inside an old school sleeping bag again. Unless it's with Barbara Windsor circa '72. Oops, sorry...we just dozed off in our Selk Bag again. Zzzzz

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