Go ahead and call me a ***** but for a penny a night I'll have to call anyone who ever has to make or purchase a coffee or coffee related product something far worse. Hrmmm... what's a good name?
It's far easier for the electric bedspread to "conduct" a handful of BTUs directly to the body's muscles than have to radiate or convect heat across a room at whatever it can hit. I guess a tightly woven clear nylon mesh mattress pad over a totally silvered acrylic layer would be a very efficient heat trap. Still... I'd rather not wake up looking like a waffle!