I might be tempted to try those incredibly low priced, incredibly good led projectors and the $100 wireless remote roll down movie screens.
Full daylight will be bad but you'll have a big ol' picture.
https://www.amazon.com/gp/aw/d/B00MR...b_b_asin_image
This screen is great. I imagine they're all the same.
It would bolt right on the edge of the overhead bed.