I live right on the ocean and can not use down here..it sucks up the damp and the cold. In a dry cold I am sure it is fine...I do have a hard time keeping warm, probably because I insist on using this old worthless sleeping bag as part of the bedding..but in general, fake (I think) lambswool pad over electric pad not used..and a wool blanket in there somewhere..flannel sheets, wool blanket, electric blanket, worthless sleeping bag...wool is really good in this climate..I think sheepskin would be perfect. mg