Klink,
Of course, that's the root of the problem. Mulitple long days need 7 to 8 hours sleep. Getting to sleep at 2300 means 4.5 hours sleep - do this for more than a few days on the trot and your performance really suffers. eJ are overlooking the safety issue by placing the responsibility on us (we have to call in sick if too tired), but many are reluctant to do this each and every week when others can "take the strain". Furthermore, if we cannot adjust our lives to suit the roster, we may get an email like the infamous LGW one.
This is one reason why many are changing employers rather than sacrificing their home lives.