This thread is becoming quite long now - and quite rightly so, sleep is vitally important - whatever you do in life.
Probably,in reality, even more so in an aviation environment.... One thing is for sure, as long as we maintain our airlines vital 'operational' needs and produce a profit, then this issue will be quietly brushed under the carpet for along time to come.
I hate to say this , but the only thing that will cause our managers / beancounters to take this seriously will be an accident involving significant loss of life somewhere in Europe.
I hope i'm not right, but where have we seen this attitude before?
As long as they can get away with drumming into our heads the need to make a profit / endless security routines & requirements, this will be 'conveniently' forgotten about........
In the current climate, most of the really important things about flying are being pushed aside..........