Wear a hat all the time apart from the shower! I have been known to wear two! Our daughter really feels the cold, she has a Down 4 season( feather pack up really small but very warm) sleeping bag with a fleece liner, she is fine, the liners do make a difference and are good value for the warmth they give. You need to keep her off the floor as loads of heat will be lost through it. Hot water bottle is good too.. Never go to bed cold, run around and get warm then go to bed, I am sure the Scout leaders will have it well covered but it can put her off for life if she is cold and wet. She should pack her own kit as then she can find it when required. Get her a cheap head torch ideal for nocturnal visits to the loo etc, £1 shop one is fine then it dosnt matter if it gets lost. Have a secret stash of energy food, if she feels down it will bring her back up, Choc, oat based bars etc I could go on for hours, our son (13) sleeps with no tent just ties a sheet between two trees and off he goes! He uses a 30 year old down bag as if it gets damaged its not the end of the world. We have used this forum for info on similar matters when we started out and the kids did D of E, nice bunch and very helpful http://www.bushcraftuk.com/forum/content.php If I can help just ask
This is brilliant! Thanks everyone. Several things I hadn't thought of there. I need to think creatively about what she can sleep on (am cursing the fact we disposed of several clapped-out old sleeping bags when we moved house three months ago!)
And yes, I'm sure the Scout leaders will have some good strategies in place - I presume that learning to keep warm is part of the purpose of the event!