G. K. Chesterton has said, "Lying in bed would be an altogether perfect and supreme experience if only one had a coloured pencil long enough to draw on the ceiling."
You will be surprised, unless yuu have tried it, how much fun it is to draw when you are forced to stay in bed. In fact, some people have been suspected of staying in bed longer than absolutely necessary, just for the fun of drawing.
When you begin to feel better and are able to sit up, start drawing. You will recover more quickly if you do. Many doctors recommend drawing as excellent therapy during convalescence. And long hours in bed aren't a bit tedious when you can draw.
Of course I should hardly recommend that you attempt to draw on the ceiling. Ask someone to get
you some typewriter paper or a ten-cent pad of white scratch paper. Keep plenty of it right beside
your bed. Your hours are your own when you're in bed, you know, and you may want to draw in the middle of the night, if you aren't able to sleep. Use a very soft pencil, or, better yet, use pretty colored crayons.
By all means don't take drawing seriously when you draw in bed. Don't concern yourself the least bit with correct proportions. Remember that you aren't competing with Leonardo da Vinci from a technical point of view. But as to feeling and expressing the individual, imaginative you - the real you - no one ever was, or ever will be superior to you. Express your individuality on paper. Draw just as you feel. Your drawings will be bound to be interesting, they will be delightful - if they're sincerely and truthfully you.
What to draw? Why don't you begin by illustrating "Little Red Riding Hood" in your own particular way? Here is mine for a starter.