Good Morning to Your Nightcap (reel)

I think that daycaps, mornigcaps and other headgear have left me vexed and clueless regarding the name of this reel. It was recorded by Michael Coleman around 80 years ago. I don't think he had a name for it. I'm not sure where this name came out of but it conjures up some interesting images though I can't quite tell what they are of.