Yeah, leave it on. Technically because it is a finished edge, you could just do a single roll. Either way, it is going to unravel less if you keep it...
As I neared the trailhead on Day 2 I encountered four guys heading into the woods for the night. One of them was drinking from a gallon jug of water...
All that stuff will be compressed, so I don't even count it as insulation. Insulated pants, for example. Sure, the top part of the pants will provide...