I have a BiPap machine Respironics with full face mask . Fisher & Paykel face mask . Just curious if the breath right nasal strips help ?

I am a disabled F/T student & not working. My healh plan is Kaiser HMO, but they CONTINUE to decline a Polysomnogram study req. My primary care doctor told me on 8/23/07 to give it till October 07 & if symptoms continue, she will consider MY REQUEST of referring me to UCSF sleep lab, but DECLINED on two occasions. I am very frustrated with Kaiser & my overall care. Apparently, Kaiser only does the over night pulse oximeter testing that I already had done & does not perform over night studies, known as Polysomnogram. I have been having severe breathing problems, esp. at bedtime. My oxygen continues to drop several times at bedtime (i.e. 86-88%) This is not normal for me, let alone anyone. COULD ANYONE REFER ME TO A POLYSOMNOGRAM FREE SLEEP STUDY. I have been looking on www.clinicaltrials.gov and www.clinicalconnections.com for several months, but no luck. I live near S.F. CA, but willing to travel somewhat to do this study. Pls, adv, as I have been in/out ER several time

I currently have a full face mask on my machine. I first started keeping it on all night; but lately I can’t . I would appreciate any ideas/suggestions to help with this slight "problem".
I’m not sure why I can’t; sometimes I feel "closed in" when I have it on. My doctor suggested contacting my medical supply company & see about getting another mask–maybe it isn’t fitting right. I was wondering if there was anything else I could do, as well.