Seems to be that the third verse is missing from MCP's version, similar to John Mackenzie's quotation of the Child version: as I learned it from a friend from Edinburgh in the Moroccan desert in the 1960s(!):

She's raised her up from off her down-white pillow.
She's lifted the blankets from off her breast,
And through the window, she's whispered softly
"Who's that disturbing me at my night's rest?"

And other very minor variations on vvs 4 and 5.