Braille would be the best.

I got my wife an adjustable spotlight for reading with a controllable brightness this Christmas and she loves it. We usually use it while we’re on the couch and I’m watching TV, but it can focus the light down to a small enough spotlight that it doesn’t even register in my perifieral but still lights the book she’s reading plenty bright enough. It might not be the best solution to use in bed, but it was a lot cheaper than a kindle. (Which she has and doesn’t use)

I’ve had kindle devices for over a decade, and my latest (kindle paperwhite) is perfect to read in bed at night while my wife is sleeping, adjust the brightness down to 2-3 and it’s easy on the eyes to read in the dark, and dim enough that you can’t even use it to find your way to the bathroom.

Turn a light on

I read in the dark on my iPad with white text on a black screen and night mode on. It’s easy on the eyes and I can read in the dark without disturbing anyone.

I have a cheapish samsung tablet that has blue light filtering, a black and white option, and super low screen brightness options. Low enough that if you’re in a dark room, it’s low enough that i can’t have it all the way down and still read.

Braille

Any e-ink display eReader will work for you, but I personally recommend Kobo. They have a more open approach to loading files compared to Kindle, and they tend to be very affordable for a high quality device.

Alreader, I believe on both android and iphone. I use it at a very low intensity level with red text and black background.

Also if you’re hyper concerned about blue light, get some red-toned laser safety glasses, you can get some that go over existing glasses if you need them, and they will, if any good, cut out basically all blue / green light regardless of what’s going on around you. Recommend putting them on 2h before bed for best results.

Kobo and pocketbook are good e-readers. Kindles have harder time with piracy and independent bookstores and you give money to bezos.

I had pocketbook. Not the best way to read comics or pdfs but for books is great. Customization is tricky but doable.

I read in my phone using an ebook reader app with amoled black background and a peach-ish font colour. I keep brightness on minimum, have phone’s night light setting on (it reduces blue light). Also ensure that my phone is on silent and dnd mode. Best combination IMO for reading in the dark before going to sleep. Another idea is, listen to an audiobook with sleep timer on.

Audiobooks with earphones? There’s wispersync so your progress matches across devices. It’s also much cheaper to buy an audiobook if you have the epub/mobi/kindle version

I have a Kobo Clara 2E for pretty much this reason. The lit screen has multiple levels of luminosity and adjustable yellow tone. I keep mine at a cool stone white but it can go really yellow if that’s what you want. On top of that, Kobo is much more user friendly for loading ebooks, it’s compatible with a whole range of ebook formats unlike Kindle.

@sonovebitch@lemmy.world TBH an e-ink device with dark mode works well for me

Where I live, I would a Nook GlowLight 3 because the device filters blue light when you read late.

But I usually like to read with the lights on instead though I hope this answers your question better.