0.0% Slow Wave Sleep During Titration - Cause For Concern?

KarD786 · Post by **KarD786** » Thu Jul 17, 2014 4:59 pm

Hello all, I went to the sleep clinic today to get fitted for a mask as my CPAP is being delivered tomorrow. While I was there, I asked for the results of my titration study. Everything looked pretty normal, but I was shocked once I saw that there was 0.0% Slow Wave Sleep recorded. The results from the original sleep study are posted alongside the results from the titration. Is this normal?

Sleep Study: AHI:14
Stage 1: 6.5%
Stage 2: 80.6%
Slow Wave: 4.9%
REM: 8.0%

Titration: AHI: 6.3
Stage 1: 3.2%
Stage 2: 78.8%
Stage 3: 0.0%
REM: 18.0%

So the REM clearly shot up from 5% to 18%, but why did the deep sleep reduce to almost 0? If anything, I would have expected this number to shoot up in addition. And the funny thing is that I actually slept a lot better during my titration study than my sleep study, and woke up a lot less in the titration which is surprising because there was atleast some deep sleep that night. I'm confused. When I followed up with my doctor on the phone, I remember him mentioning a drastic improvement in the REM sleep but he didn't say anything about deep sleep. I am wondering if this is some cause for concern or could indicate some other issues with sleep?

I have read about the controversial "REM Rebound", but I would think that deep sleep has a similar effect, in that we would also spend more time in deep sleep after being deprived. But I am not 100% sure on that, so hopefully someone can chime in. By the way, I am 21 years old, and according to what I've read I should be spending about 20% in slow wave sleep and 20% in REM.

KarD786 · Post by **KarD786** » Thu Jul 17, 2014 7:33 pm

Bump. Anyone with insight?

Sir NoddinOff · Post by **Sir NoddinOff** » Thu Jul 17, 2014 8:41 pm

Sleep meds can reduce or eliminate deep sleep cycles in some people... did you take any

KarD786 · Post by **KarD786** » Thu Jul 17, 2014 9:14 pm

Sir NoddinOff wrote:Sleep meds can reduce or eliminate deep sleep cycles in some people... did you take any

I actually didn't even think about that. I did take 3MG of melatonin, but did not think that would affect the study. I consulted with my doctor before going into the titration, and he said that taking melatonin was perfectly fine.

archangle · Post by **archangle** » Thu Jul 17, 2014 11:55 pm

One night's sleep is not that meaningful for a lot of things. That's one of the reasons it's so important to get a fully data capable machine and monitor the results in the home.

That's especially true when you're in a strange bed, with wires attached, nervous, etc.

Good luck with the machine. Did you read up and learn how to be sure to get a data capable machine?

Sludge · Post by **Sludge** » Fri Jul 18, 2014 6:42 am

KarD786 wrote:I have read about the controversial "REM Rebound"...

Why/how is "REM Rebound" controversial?

KarD786 · Post by **KarD786** » Fri Jul 18, 2014 10:31 am

Oops I think I mistook REM Rebound for sleep debt. Anyway, my REM is right where it should be and not over, so I'm still worried on why I didn't go into slow wave sleep. I just hope it's not something much worse. And yeah I am getting a data capable machine and it will be delivered today.

Sir NoddinOff · Post by **Sir NoddinOff** » Fri Jul 18, 2014 10:34 am

KarD786 wrote:
Sir NoddinOff wrote:Sleep meds can reduce or eliminate deep sleep cycles in some people... did you take any
I actually didn't even think about that. I did take 3MG of melatonin, but did not think that would affect the study. I consulted with my doctor before going into the titration, and he said that taking melatonin was perfectly fine.

Melatonin is not really a 'sleep med, per se, and yes as your doctor related, it is generally recognized as being safe to take in the correct dosages... too large a dosage however, can be detrimental to long term sleep quality. For occasional use I like to stay at about 0.5mg, that works best for me. There were two recent sleep studies conducted, one at Stanford, which found that smaller doses were better for long-term sleep quality. I'll try to find the studies and cite them.. as I recall 0.3mg of sub-lingual melatonin was recommended. Sleep meds are stuff like Ambien, Lunesta (ie.Z-Meds) and various benzodiazepines (benzos) used off-label (plus several anti-depressants drugs like Trazadone, Remeron etc).

KarD786 · Post by **KarD786** » Fri Jul 18, 2014 11:00 am

Hmm ok. Well i haven't taken melatonin since the sleep study. I never have trouble falling asleep, but I was taking it to help me fall asleep faster after waking up in light stages sleep. However I don't plan on using it except for rare occasions once I get my cpap

0.0% Slow Wave Sleep During Titration - Cause For Concern?

0.0% Slow Wave Sleep During Titration - Cause For Concern?

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Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?

Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?

Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?

Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?

Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?

Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?

Re: 0.0% Slow Wave Sleep During Titration - Cause For Concern?