I like the technique mentioned at last fall's WAS meeting at Simon Frasier (somewhat similar to Jane's): put a box on top filled with a "fiberglass pillow," a plastic garbage sack stuffed with fiberglass insulation. Nice and neat, clean, etc., and avoids the wicking problems. One could, I suppose, put a breathing tube vertically in this box and wrap the pillow around it. [log in to unmask] Camano Island, WA, USA