Heated tube - higher AHI??

[SleepinginAdelaide]

Recently I acquired a Resmed S9 Autoset as a back up machine and it is a great machine. 3 nights running AHI of 0.6 but last night I decided to try the climateline tube in place of the slimline with a cover and my AHI has gone to 2.2.

I'm fully aware 1 night is not enough data but do wonder if others have noticed anything similar.

I had the climate setting on auto at a temperature of 22.

It is winter here now but not all that cold, about 10 degrees with 75% humidity

I feel fine this morning but the change was unexpected. Leak rate was fine.

[zonk]

Any change to 95% pressure, AHI breakdown, sleeping position, time spent in bed while awake or trying to sleep. Events scored while awake are meaningless and should be discarded for true AHI value

How the temp inside the bedroom. I need higher humidity otherwise cold air feel uncomfortable and nose get stuffy, some people get stuffy with higher temp too so everyone is different