When I first saw this tutorial I didn't like the idea too much. But my elder son is now reading every evening in bed and he takes the most awful positions for either his head/neck or his back or his legs. So I tried out this neck pillow and it is working really well and is in use ever since (ehhhmm, a week now). Biggest advantage: it is not round, so it is not rolling away as neck rolls can do.
Of course the little one wanted a "bone" too. Last night I made one for him and this morning I could take a photo of both boys lying on the floor reading ...
Bonne dimanche et a bientot,