Why? I mostly lie on a side when reading and prop the reader (or the paper book) with the bed sheets.
This has the potential to turn into a reading positions subthread :)
Wish granted!
If I lie on my side for more than a minute or two, my hips ache. Only a little at first, but if I ignore it and fall asleep, I will wake up in writhing agony 30 minutes later. Been like this since my 20's. Reasonably healthy otherwise so I don't know what the deal is. Otherwise, yes, this would be the ideal reading position.
Extra credit: I can only FALL asleep on my stomach, but I can only CONTINUE sleeping on my back. Which means almost every night, I somehow flip myself over without waking up.
Speaking of unknown conditions, when I was younger I was mostly reading on my stomach... with the book on the floor and half my face outside the bed to look down. Until I got my eyes seriously examined and they found my (from birth) astigmatism, I corrected that and started to read with the book closer like a normal person. Have those hips checked, perhaps?
This is me, to a T. It's nice to hear I'm not the only odd sleeper.