[Nomentatus]

Right. But a dark room is a room in which, if you put your hand in front of your face, you don't see even the faintest outline of a hand.

[C-x_C-f]

I've been to some houses where the shutters had no gaps and they fit the window frame so well that virtually no light made it in, even during the day. It was surreal waking up in the morning, thinking it was still night time, then checking the clock only to see it was 8AM. A great feature to add to a house if you ask me.

[mcast]

Alternatively, IKEA makes a great little set of curtain tracks (VIDGA) you can attach to your ceiling to get full floor-to-ceiling blackout in a room, similar to many hotel rooms.

[bombolo]

Yes in sweden we call this "winter depression"

[notacoward]

That might be possible with good blackout curtains, except for the LEDs on damn near everything. Even in my own room at home, I have to remember to cover the USB charger that I use for laptop and random other devices. When I travel, it's a nightmare - clock radios, TVs, microwaves, and especially the lights built in to many GFCI outlets in bathrooms. I used to bring a roll of electrical tape for exactly this reason. Masks are the solution that works everywhere to block light, though they're less than ideal in other ways.

[Nomentatus]

Someone needs to sue any manufacturer that uses blue leds on anything that might have to be on at night.

[golem14]

Lithographers tape works pretty well to dull LEDs just enough to no longer be offensive

[raffraffraff]

I bet that with your eyes closed, the difference between "black out blind dark" and "no light" isn't much. I bought black out blind about 5 years ago and they're amazing. If I'm in my parents house or staying in a hotel during summer, I get crappy sleep and I'm wide awake at 5am.

[Nomentatus]

I might mention that, believe it or don't - a living skull is translucent, and our brains can detect light all by themselves. So a mask is good, but not nec a whole solution.

In old experiments, just the light coming in under a door diminished melatonin in mice.

[taeric]

I thought the same, then I got an eye mask. It is still noticeable.

Now, I make no claims that it is necessary to be that dark. I have no idea.

[floxy]

>Research studies indicate that about 1 in 20 people do not shut their eyes while sleeping.

https://www.sleepfoundation.org/physical-health/sleeping-wit...

[lm28469]

Thanks God I'm in Europe and we have access to alien technologies such as roller blinds, which are basically the default on anything modern