I agree with Cycommute. Here in PA unless you hang around camp for hours in the morning your gonna be packing up a wet/damp tent also with bugs and dirt on it. Keeping my sleeping bag dry is top priority especially in winter. I will often times pack it in it's own dry sack then put it in a waterproof pannier. Overkill I know but beats shivering through a cold night in a damp bag.