Don't want to wake my 4 year old right now, but she has been singing this at her nursery in Deptford...with actions.

"I'll telephone to tell old Mr Santa Clause,
you want him to come tonight. (click and action of old fashion phone being put down)

????                     I'm softly sleeping
He'll come down the chimney, gently creeping.
Hang up all the stockings on the bed,
hey children,
blow out the candle light.
Jump into bed
cover up your head
blow a kiss... good night".

I'll listen harder tomorrow.
But any ideas where it comes from?