Coffee Pot Wraps vs Cosies

It's time to deal with that old argument of Coffee pot wraps versus cosies :) . Should your weekend morning coffee be wrapped snugly in the embrace of a well fitted body warmer........

.......... or blanketed from top to bottom in an all encompassing cosy?

Personally, I drink instant Alta Rica in a morning but if I was brewing a big pot of 'Joe' that I wanted to last a good while, I'd go for the cosy.