Quick answer: Yes. Unlike an e-ink reader, a tablet is backlit and blue-rich, so reading on it at night sends alerting light to your eyes right before sleep. An amber lens (plus the tablet's night/warm mode) blocks that blue light so your reading doesn't push back your bedtime.
How to read on a tablet at night
- Wear an amber lens for the last hour or two before bed
- Turn on the tablet's night/warm mode and lower the brightness
- Read with a soft lamp on rather than in a pitch-dark room
- Prefer a front-lit e-ink reader on its warmest setting if you have one
The bottom line: Reading on a backlit tablet at night does affect sleep, and amber blue light glasses help. Pair them with the tablet's warm/night mode and lower brightness, and your bedtime reading stops keeping you up.
