I also like sodium lighting, especially the LP variety (despite the fact that all the mystic about orange light helping sleep has been basically debunked), but it is still light. We should decrease light pollution, not simply change its color.
Anyway, sodium lamps are being replaced by white LEDs.
A Time article [0] reports on this paper [1] that reaches the same conclusion as the user's comment. However, it's a mice study, which is an important limitation because rodents are nocturnal, according to the Time reporter.
Meanwhile, Harvard Health [2] and WebMD [3] also both continue to report that blue light suppresses melatonin production for humans.
From Time: "Animal studies should always be taken with a grain of salt, as they often do not translate directly to human behavior. And there are additional caveats to this particular paper, says Dr. Cathy Goldstein, a sleep specialist at Michigan Medicine. The researchers looked specifically at cones in the animals’ eyes, which detect color, instead of melanopsin, which senses light and is central to the issue of melatonin secretion.
"They also kept light levels dim, regardless of color, which may not reflect the bright lights of electronics.
"And finally, though mice are frequently used in sleep research, Goldstein notes that since the rodents are nocturnal, they may respond differently to light than humans do. Taken together, Goldstein says these conditions mean the study’s results apply only to a very narrow set of circumstances and metrics. “For this to get extrapolated to saying ‘blue light at night isn’t bad for you’ is a little bit of an extension,” Goldstein says."
Anyway, sodium lamps are being replaced by white LEDs.