Tiredness decreases my sleepwalking

After the birth of my second kid I became significantly more tired and noticed an overall decrease in most of the sleepwalking scores.

As shown below the number of sleepwalking events decreased (graph A) as well as the HLL (graph B) and BCSL scores (graph C) while the average time between events was not affected (graph E).
Interestingly the average event length also increased (graph D) but not the average time asleep by which the first event occurred (graph F).

Average values, +/- SEM. % variation and statistical significance are indicated (if less than 1%)

When looking further in details, tiredness slightly increases the intensity of my sleepwalking events (graph G and H) and they appear earlier in the sleep (graph I).

Those data suggest then that tiredness decreases my sleepwalking by decreasing the number of events. At the same time it makes those events more intense and bring them earlier in the night but in an effect marginal enough that my overall sleepwalking decreases.