Call me quirky but I winter sleep best in an unzipped mummy turned over with the zipper on the bottom, mummy over my face. Muffles my snoring, well not a lot. Wool or fleece hat. I can move easily and sleep on either side, back or belly. Two pads below, usually a blue pad and a z-rest. With proper ground insulation you don't get nearly as much cold air seeping in the sides as you may think. On really cold nights or ice cave sleeping when it can get wet I put everything inside a light over bag that packs down to the size a pair of socks. Other hikers also swear by rectangular down comforters for the best night's sleep. Don't forget a light snack an hour before bed, you'll sleep just a bit warmer.
For Scouts we always emphasize sleeping in their driest clothes, too often teen age years can make them uncomfortable about changing clothes in front of other Scouts. Starting out wet just starts an uncomfortable cycle.
Down or synthetic, we usually leave that to older Scouts to advise the younger. 50 milers or Philmont will make everyone an authority. 80% down out here in our PNW troop, altho there are some nice synth bags for decent dough, ymmv. For young Scouts it seems a struggle to get anything into a right sized pack for their height-weight - too tiny to haul very much. The troop quartermaster maintains a few bags and a few packs donated by departed scouts for tenderfeet to try out and see what they like.
Edited by Lono (01/15/14 04:49 AM)