it is supposed to help with sleep. If you can reduce or eliminate artificial light sources it is good for keeping your circadian rhythm in line. If you need to have light on, red has the least effect.

Also, on the other side, you are supposed to get natural sunlight as close as you can to when you wake up.

@DrFell

Daylight Savings Time is unhealthy.

@DrFell I'm not sure the effect is really that huge, and for most people it isn't really practical.

But she has had some pretty minor sleep issues that she wants to improve.

And to her credit; the combo of

>breathwork
>caffeine cutoff by 2pm
>reduced post-sunset light [or redlight]
>early morning natural sunlight

Has had her sleeping like a rock for about a month.

I really think the breathwork has had the biggest impact, and anyone can do that.

@DrFell this isn't that kind of red light, but I know what you are talking about. This is just regular red light bulbs to stimulate your eyes less at night.

I can recommend the breathwork stuff. Just doing 4:4:4:4 'box breathing' usually puts me to the edge of sleep at night.

@DrFell wife did a deep dive on the red-light therapy stuff too.

tl;dr: you do need specialized equipment for it.

She is thinking about trying it, but has to read more.

@DrFell

Yes, they can be ~$350 and up.

But luckily there is a free one available: the sun. You can get all you need from that if you can schedule it.

@DrFell probably true, but with the accompanying uv light.

Sun is pumping out all of the spectrum all of the time.