Ramp on an APAP Machine

Pugsy wrote: Now can the ResMed really distinguish sleep status?...beats the heck out of me. I haven't seen any documents discussing accuracy but I would think they have some to back up the hype. I just wonder why if they can tell if a person is asleep or not then how come we get sleep/wake/junk flags on the AirSense machines.

The flow changes as you reach (the deeper stages of) sleep. It becomes more even and less erratic. Also - as you described - the flowlimitation and / or obstructive events do increase. Could be "easily" checked if one calms his or her breathing down and keeps on breahting steady while awake and on auto-ramp.
(Or just look at the corresponding charts in sleepyhead - the pattern should emerge pretty quickly)

Don't use thee ramp just because it came delivered that way (unless your doctor specifically told you to, of course). Also, if using it makes you more comfortable, I see no reason not to use it in that case.