I have been using F&P Sleepstyle (no model nr avail) from mid 2018. I have full mask.
Results have become worse from the beginning.
Have been now one week in normal day schedule after 3 weeks vacation (yes it is luxury).
Been very sleepy for first few awake hours in the morning, feeling that not had enough sleep.
AHI has been from 6 - 13 average. When I started in 2018 I remember it being like 3-5.
Yesterday also found blood on throat mucus in morning.
Throat is usually very dry especially in the morning, also need to drink lot of water during the day.
Throat mucus has not been white/clear but has some colors on it yellow/ brownish as long as I remember.
Increased myself pressure from 10 to 12 few days back but looks no change in AHI.
For last night I increased humidity from 3 to 4 to see if it helps with throat. Too early to tell that.
My main concern is increased AHI value, if anyone who understands stats from OSCAR is able to comment would be really great.
There are two reports bad day and normal day.
Apologies if format is not good as I have not been following forum lately

Pressure is fixed at 12.
Links for pics:
https://ibb.co/qgMpYDg
https://ibb.co/svGppsS
Cheers