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I've read a number of articles about the blue light sleeping issue and the bulk of those written by people with a scientific bent seem to say that's mostly pop science. It seems the studies that show blue light affects sleep have been concerned with a lot more like than we get from ereaders.
There's nothing to say it's not a real problem but there's not much pointing to it being a real problem either. I read every night in bed, usually for 15 or 20 minutes but often for over an hour. I go right to sleep, almost always. I wake up a lot during the night and I have since before ereaders and tablets were invented. It's kind of a normal thing for people my age. But falling back to sleep is rarely a problem.
In fact when I do get up I sometimes read a little before I try to go back to sleep. I did that this morning about 2AM. I read a chapter, about 20 minutes, and went back to sleep.
I usually do this on a lighted Kindle with my bedlamp also on. Sometimes I use my phone or a tablet.
Barry
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