Selk'bag, Sleeping Bag or Snowsuit?

For some reason I'm partial to this sleeping bag-parka, it might be a Canadian thing. It's nice to be cozy but with this look you could be cozy all the time. It comes in a variety of colours and it's good for sumo wrestling!

The Selk'bag is a sleeping system which allows to dress with your sleeping bag, giving a maximum mobility and comfort in periods of rest in a tent or outside it: Separate, move and join arms and legs; Roll with your Selk'bag, not in it; Stand without any trouble, walk, cross your legs and even grab certain elements totally with your Selk'bag.