Kind of a random aside, but I never realized how obnoxious LEDs were until I got a studio apartment and started sleeping in the same room as my homelab / workstation / networking hardware. Electrical tape saved me, but wow. You sure can produce a lot of light with a milliwatt of electricity :)
(And yes, my workstation has a clear case and LED RAM. Yes, I'm an idiot. Whenever Windows applies an update late at night, I wake up if it turns back on. I don't know what I was thinking when I built that thing, but never again.)
I always thought it would be low-grade hilarious to record a fairly long video of the unboxing and assembly of a ridiculously elaborate in-case LED setup, only to reveal with a straight face and at the absolute last minute that the case in question is entirely opaque.
I like to put a little red wax over LEDs (at least, ones that I don’t touch). That way you can still see them, but they are dimmer, and the red tint makes the light less annoying at night.
Is it even possible to buy computers these days that don't look like they're intended to be the lighting system at a rave?
Yes it is.
Even worse are phone chargers, intended to be used next to your bed, that light up like a Christmas tree when running. Black electrical tape is great for the worst of it, but you still need a few things available to tell you the operational status, if only they'd dim them a bit.