It's like one of those hairdryers that fit down onto your head:
At any rate, Posy seems to be enjoying it very much. She is probably deciding what spa service she should select next, the hot rocks maybe? Cupping? A mani-pedi?
Posy, dreaming of buttercream frosting on a cupcake:
And when the "sun" bath is over, it is time to curl up on a warm comforter (never mind the fact that when these pictures were taken it was still in the eighties).
Sleep well, Posy; sleep well!