The coleman is a good scout bag, for when the Tenderfoot bedding down next to your son spills cocoa or walks across all the sleeping bags with muddy shoes to retrieve his toothbrush, or for when they pitch a tent in a hollow-soon to be bathtub. Just make sure his pack is large enough to hold it. Having bulky gear is just part of doing business as a scout. Use double sleeping pads in winter as mentioned.

The synth over bag, down bag, vbl is my fave for multi-day winter, but having that cheap coleman is still useful for car camps, river trips, as a loaner etc.