Either you’d be kinking your neck very far (and still have to bend your knees to fit), or you’d be in a position that I don’t consider lying. Reclining, maybe? Leaning back?
In order to be lying down, I’d say your back has to be in contact with the horizontal surface
I see. But the most common type of bath I know of is a shower-over-bath!
We have one. It’s too small to lay down on my back in. I can’t even sit comfortably in it. It’s so narrow.
If you can lay down comfortably in your bath, you’re either very short or your bathtub is huge
Lie flat? Sure. But lie with your head propped up? That’s normal.
Either you’d be kinking your neck very far (and still have to bend your knees to fit), or you’d be in a position that I don’t consider lying. Reclining, maybe? Leaning back?
In order to be lying down, I’d say your back has to be in contact with the horizontal surface