="anchor" href="#cleaningcode"></a>
</h3>
<p>To monitor possible problems with the sleep detection, the output
variable <strong>cleaningcode</strong> is stored per night. Cleaningcode
per night (noon-noon or 6pm-6pm as described above) can have one of the
following values:</p>
<ul>
<li><p>0: sleep log available and SPT is identified.</p></li>
<li><p>1: sleep log not available, and alternative guider used (HDCZA by
default) and SPT is identified with that.</p></li>
<li><p>2: not enough valid accelerometer da