My 88-year-old dad has been in hospital for six weeks, mainly in bed - and I think the lack of stimulation has resulted in numerous cases of pareidolia.
On one visit he spoke of a human head, which turned out to be a carrier bag on a cabinet. And yesterday he saw a cricketer, which I eventually worked out was a white anglepoise lamp in front of a brown pinboard on the wall (or cigarette card, as he interpreted it).
Until recently there had been no sign of mental decline apart from him being a little slower, but the year has been difficult and then he caught Covid. He'll be leaving hospital on Wednesday to go into a care home, which I hope will be better for his mental health.