s for Time in
Bed will be replaced by HDCZA estimates of SPT. Therefore, extra caution
should be taken when working with the full output.</p>
<p>Notice that part 4 is focused on sleep research. In the chapters we
will discuss the analysis done by part 5. There, the choice of guider
may be considered less important, by which any estimate of the time in
bed is considered useful. So, you may see that a night that is excluded
from the cleaned results in part 4 still appears in the cleaned results
for part 5.</p