>>1684173It's a simple fact that it would increase your thermal insulation wrt your surroundings. Cuddling would partially do this too, but would not isolate you on all sides or from heat conduction to the ground (maybe you could lay a blanket or some pine branches or something else on the ground to help there).
Getting wet from various body fluids would be a bad side effect though!
>>1684175>>1684186Worrying about the stored body heat is missing the point, it's the insulation that is important. Your winter jacket produces no body heat either, but it undoubtedly helps to thermally insulate you.
