Increasingly though daylight-frequency lightbulbs are becoming mainstream. Our house has them fitted everywhere, as does a new development of 100+ homes nearby

Increasingly though daylight-frequency lightbulbs are becoming mainstream. Our house has them fitted everywhere, as does a new development of 100+ homes nearby. I suppose that may affect sleep patterns in the short term but after several years of using exclusively 6500K lighting I don't have any problem falling asleep after turning-off the bedside lamp even though there's no graduated transition from 'blue' light to darkness.