It’s not a settled issue. There are research papers that show evidence that blue light affects sleep, which is not the same thing as blue light makes your sleep worse.
It’s associated with dim light you see naturally at dawn and dusk, so it makes sense that it has some effect. But exactly what isn’t clear and it might be a lot of it depends on the circumstance.
It’s not a settled issue. There are research papers that show evidence that blue light affects sleep, which is not the same thing as blue light makes your sleep worse.
So does it make sleep better?
It’s associated with dim light you see naturally at dawn and dusk, so it makes sense that it has some effect. But exactly what isn’t clear and it might be a lot of it depends on the circumstance.