8 years ago I fell out of a tree and broke 6 ribs, 10 days in hospital.
Upon my return I asked my wife to swap sides of the bed, as I could only sleep on my right side and needed to face outwards.
Second or third night she got up a bit disoriented and walked/clambered out of a first floor window (it’s an old house where the bedroom is an old hayloft) shattered 3 vertebrae, heavy stuff 8 days lying horizontal, risky operation, but full recovery.
Anyway, moral of the story, slips and trips are a major source of life changing injuries, and stairs are lethal.
My wife’s work colleague’s brother brought his girlfriend round the parents house for the first time to stay.
They had a few drinks and all went to bed, she gets up in the night, not knowing where she is, tumbles down the staircase, breaks her neck and DIES!