Some thoughts on Warmth

There's nothing like being toasty-cozy warm. But I have some habits -being relatively skinny, using a down sleeping bag that's missing at least half its feathers, swimming in cold water to the point of inducing mild hypothermia, that tend to inhibit this sensation. After swimming in the Pacific, I'll do anything, including donning full, non-breathable raingear and lying in the sun, to be warm.