Another one of my random ideas that I’m curious if it’s actually available. I tried searching for this but couldn’t find much information. Basically, the same concept of reducing blue light as those glasses and the “night mode” for screens to help you sleep. I imagine it’s not that hard to do that with white LED lights as well, just alter the phosphor formulation to emit only lower wavelength lights, it would probably make the light more yellow, but that’s honestly a small price to pay if it makes you sleep better. Does it exist already? If so, any word on how well they work?
Andrew Huberman’s YT channel may have one or two videos you might like. He is a scientist who specializes in eye-brain connections. His shows are longgggg, but excellent. He says use dim red light below waist level after dark. Some nightlights have different wattages as do some nightlight bulbs - but I have found this the easiest and cheapest way of accomplishing what he recommends. The nightlight needs to have a manual on and off switch preferably and I think 4 watts (i have) is too dim, so 7 watts may be better. You can get the red light bulbs somewhat cheaply in large Asian stores in the Buddhist section. Most single red bulbs will be between 50 cents and a $1.30. I think I saw different wattages on them, hence the different prices. There are apps for phone and PC and maybe browser extensions to adjust light levels and maybe types of light.