Good Afternoon.

About a year ago, my sister was slammed up against a couch-back, by a spring in the couch-bed that yanked her forward while pushing the bed portion down into closed position. (These are very dangerous springs in my opinion, and should require warnings more obvious to the sofa owners) The force which snapped her, made her forehead bleed, and neck hurt. She has been fine until recent months, hearing a hum in ears, lower neck pain depending on how she sleeps. her mobility to bend neck backward varies.
...would this also cause interrupted sleep ?