Understanding the plots
Expected Sleep Periods (Night Time)
The expected sleep period table lists the periods when your patient is consistently asleep each day. This period is assessed regularly and displayed on a month by month basis. This allows for genuine changes in your patients routine. 
It is important to note that in some cases there may be more than one period each day where your patient is consistently asleep.

It is important to note that in some cases there may be more than one period each day where your patient is consistently asleep.