[rex64]

Maybe it's just anecdotal but I remember having very vivid dreams almost every day when I used to leave my Nintendo 3DS in sleep mode (really bright pulsing blue LED) on the nightstand.

I've always wanted to try to replicate this effect by using an Arduino or something like that and playing with the various LED colors, brightness, etc.

[higgins]

I would love a more customizeable remee mask*

Tuning intensity and pulse frequency so i don’t throw the mask off my face

*https://sleepwithremee.com

[SanjayMehta]

Cathay Pacific had an LED wall which changed colours in the manner described. Quite bizarre and disturbing.

[lvturner]

The Hong Kong airline? If so when/where was this wall?

[SanjayMehta]

The front row of business class. Saw it twice, probably in 2006.