Setting the minimum to 16 had some effect - though i relaise that was not the advice of you all.
I still jerk awake but eventuiall do get to sleep and sleep well.
Still concernes me that pressures are at ca 19+
I will be seeing a CPAP/ sleep specialist in three weeks (Hey , it is UK. Delay is part of life).
In the meantime i will activate the sleepy head software and may post bits for advice.
Thanks again [/font][/size]