The other thing about published research is that there is always a bias, always the potential for omissions and distortions and fraud, especially when big bucks are involved. Have to consider the source and, who's funding, and so on.

ex vivo: This is obviously getting off topic, but have you looked at your sleep environment with regard to issues around wireless radiation? When someone says things suddenly got worse, makes me wonder if some new source of wireless radiation came into the picture -- smart meters installed by a utility company, smartTV, WiFi, smart phone being used as an alarm clock, etc.