The concept of sleep disturbance is rather vague. Many people claim to
suffer from sleep disturbance, but yet find it hard to describe exactly what
they mean by the label in subjective terms. Sleep researchers have a similar
problem, it is difficult to describe what is meant by sleep disturbance either in
an objective or a subjective way, and harder still to relate sleep disturbance
to sleepiness shown the following day. [Continues.]
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.