Hacker News Reader

So many questions...

Does total darkness also exclude dim lights like LEDs? So should you avoiding any electronics like clock radio, phone notification LED, ...?

Is having your eyes closed not enough to block out the light?

If it's about light on the skin: does lying under a blanket block it?

View on HN

Melatonin is inhibited by light reaching the eyes. An eye mask might be enough. Speaking with regard to sleep, not cancer, I have to block any LEDs on things like battery chargers to sleep well. I despise the trend of putting blue power indicators on things used at night (I'm looking at you, Air-O-Swiss).

So do I, the blue LED is the curse of the modern era. Old time red led's have zero annoyance for me but when I walk through the living room at night and it's all alight in blue glow from the dvr etc it annoys me on a visceral level.

Thick black electrical tape is the best fix unfortunately.

I hope the blue light fad goes away soon.

> I despise the trend of putting blue power indicators

Blue indicators should be deemed illegal. I had a laptop that had no less than 14 (fourteen) blue light sources on it. I had to unscrew the part and remove the LEDs.

Reply on news.ycombinator.com