It involves allowing a foot to protrude outside the duvet so as to achieve a cooling and ventilating effect, not just for the foot, but for the entire body. As such, the foot acts like a snorkel for the aspiring sleeper, providing a constant supply of air. Foot snorkeling is especially useful when sharing a bed with an exquisitely beautiful and sexy woman.
-Well Margaret, don't be hasty, you know what the weather's like in this country. The day you buy your summer duvet the temperature will in all likelihood drop by ten degrees, and you'll probably never use the thing again. However, your problem could easily be overcome through judicious use of the foot snorkeling technique.
-The foot snorkeling technique? How does that work?
-It's very simple. Take off all your clothes and get into my bed and I'll give you a demonstration.