AS 11 Smart Stop

[foodphixer]

After using an AS10 almost three years the racing engine noise while inhale/exhale got so loud i contacted Apria. My insurance covered a new device rather than repair the AS10. 
I have had the AS11 for two nights now. First night no issues except leaks and mask adjustments.  Last night, however, I was awakened when the device shut off during sleep. It restarted up again (my guess between 5-10 seconds). This repeated again twice more the last time was as I was waking up but before removing my mask.
Has anyone who has a new AS11 been aware of this happening? This morning I have turned off the smart stop to hopefully avoid the issue reoccurring tonight.

[sauerkraut]

foodphixer;
If your AS-11 does the same thing again tonight these are some of the 
things You could check ..
Was Your Electric Company switching sub stations for maintenance ??
Lighting storms in the area ??  Ligting strikes can cause power company 
circuit breakers to cycle .. 
Have You contacted Your machine supplier ??

[Crimson Nape]

In earlier models, both the start and stop were included in one option. The AS11 now has them separated. In the S9, this option worked without any reported problems. In the AS10, this option started to cause problems by intermittently turning off then back on. Most users didn't realize it occurred until they were reviewing their data. I'm wondering if AS10's code was modified and used for the AS11.

- Red