[Guest]

I have had 3 sleep studys done. I have sleep apnea it is been controled cpap I am still sleep during day. y say I may have maintenance insomnia. is ? I dont underst as I slept 8 hs during last sleep study fall asleep in 3 min, help!!!

[Guest]

I am terribly sorry for the delay in response, a glitch on my personal email system is at falt and is now corrected. The cause of excessive daytime sleepiness persisting with someone who has sleep apnea can be multiple. One cause is not completely getting rid of your sleep debt that accumalates with continued sleep deprivation that one gets with sleep apnea. Studies looking at daytime sleepiness with patients with sleep apnea show a marked improvement after one night of cpap therapy but the tiredeness persists up to at least a couple of months. So it may take awhile to relieve your sleep debt. Another possiblity it that you have another sleep disorder on top of your sleep apnea such as periodic limb movement disorder or narcolepsy. I don't know if this has been studied but I have seen a couple of people who I feel have had narcolepsy since their teens with a mild symptoms and then get sleep apnea on top of it which amplifies the tiredness they get from either one. Another possiblity is that the CPAP is causing sleep disruption, did your sleep study show continued arousals with the CPAP on? If it did one might consider that the CPAP machine is causing you to wake up, perhaps bilevel positive airway pressure would help in this instance. Having another problem such as silent gastroesophageal reflux causing you to wake up all night long could be a cause as well. Medicines can cause problems as well. Another common problem that I cannot stress enough is caffeine use. Caffeine even after 8 to 12 hours after ingestion can cause sleep disruption and lead to excessive daytime sleepiness. Stopping all caffeine, chocolate has a lot in it as well, can lead to remarkable improvements. Again, I am sorry for the delay. I hope this was helpful, there are many causes that will not show up on a sleep study and these are some common causes.