SLEEP TIGHT

SLEEP TIGHT
Last night I signed off my IM conversation with my sister with 'sleep tight'. Do you know how the term was coined?
Well during those ancient times when mattresses were placed on ropes that woven through the bed frame, the beds would sag, so to remedy the sagging ropes, one would use a bed key to tighten the rope. Hence 'sleep tight'.
Hope you had a tight sleep (in all its better manifestations)last night...:)