re: LED Fixtures: Great energy savings, but they could be costing you sleep...

It's not about just cutting your lights off when you go to bed. Our body's produce melatonin naturally in the Brain. This is the hormone that tells our body to "shut down" This starts to happen later in the day as the body's natural circadian rhythm comes to a down slide for the day, this usually happens as the sun begins to set. What the OP is inferring is that the LED light actually screws up our body's circadian rhythm making our body think that it's essentially noon all the time and our body won't produce melatonin. That's why melatonin is such a highly spoke about "sleep supplement"