Not meaning to hijack yer thread Patti - but clearly I'm not the only one cracking up, in different countries around the world, trying to imagine Dave in his bedtime woolly wobble cap - like Wee Willie Winkie (which character I remember playing in a ballet concert back in the dark ages of my childhood; complete with that nineteenth century style floppy white bed cap and a white nightgown).
But as always, Dave's immensely practical, so perhaps you could invest in just such a thing. And then post us a pic, heheh.