My 2.5-year-old son likes to read. We put him down early enough that he is often awake for 30 minutes or so before falling asleep. I would like to enable him to read on his own for a bit to pass the time (and for education!) before falling asleep.

Requirements:

1. He shares a room with his 1-year-old sister, so whatever solution we
use must not keep her awake.
2. If the solution is to use some sort of light, the light must turn off on its own.

One thought was to give him a [timer nightlight](https://rads.stackoverflow.com/amzn/click/com/B009UPUC36), but it's not really a flashlight so it won't illuminate the pages well. If I cannot get a better recommendation of what to do, I'll try doing this. But I'm looking for a better recommendation.