Last week, I did my first-ever sleep study and was lucky enough to do it at home (read: my insurance refused to cover an in-clinic sleep study). The main reason I asked my doctor for a sleep study referral was to find out if I have sleep apnea. For those unaware, sleep apnea is a condition where the muscles at the back of the throat relax during sleep and constrict the airways. With lessened oxygen getting to the brain, the brain sends a quick signal for you to wake up so you can reopen your airways. Often, people will gasp and then fall right back to sleep. These little wakeups during the night are so slight that we often don’t even register them, but they can happen upwards of 30 times a night for some people.
There are a few reasons why I am concerned about sleep apnea:
- Snoring – I am a loud snorer and I will snore in any position. On my stomach, on my side, on my back… your girl is sawing logs. One of the characteristics of sleep apnea is snoring in all different positions. (Many people snore while sleeping on their back, but moving to their side curtails it.)
- Blood oxygen levels – Last year, I started using a Fitbit to track my sleep and that’s when I learned that my blood oxygen levels throughout the night are lower than they should be. From my very light research on the subject, blood oxygen levels during sleep should be at least 96% and I’m averaging 89%-91%.
- Daytime sleepiness – I am a very sleepy girl. I take a nap almost every day if I can. I can easily nap for 3-4 hours in the afternoon and still go to bed at a reasonable time and sleep through the night. I can also have coffee/caffeine in the evening and it doesn’t affect my sleep.
I’m very glad I was approved for a sleep study because at this point, I just want to know what I’m dealing with. Last Tuesday, I picked up my sleep study kit at a local hospital and prepared myself for a weird night of sleeping.
Preparing for the sleep test
In my sleep kit, I had a few items:
- Paperwork to fill out about my sleepiness levels and how I slept during the sleep test
- A nasal cannula
- A sensor with a velcro strap
- A plastic pulse ox
- Medical tape
- An extra battery for the sensor
The sleep center also sent me a quick video describing how to set everything up, which was super helpful. It all seemed very straightforward, so I put all of the equipment on my bedside table and then sat down to fill out one set of paperwork, which was the Epworth Sleepiness Scale. I had to determine how likely I was to fall asleep during certain tasks, like reading, watching TV, sitting in a meeting, being the passenger in a car for longer than an hour, etc. My final score was 10, which I learned is right on the cusp of being concerning. (Anything under 10 is normal, but 10 and above means you should seek medical attention.)
Getting ready to sleep
I got into bed right around 10:30 p.m. and read for a little bit, and then decided it was time for sleep! First, I got my nasal cannula in place and locked it into the sensor, then I strapped the sensor around my chest (right at the top of my boobs). I slid on the pulse ox on my right index finger. Lastly, I taped down the nasal cannula (with one strip of medical tape on each cheek) as well as the pulse ox, as they had advised me to do in the video. And then I just had to turn on the sensor and make sure everything was hooked up correctly.
Annnnd… that’s when things got tricky. Once the sensor is on, it should quickly flash green on three different areas to let you know everything is hooked up and working correctly. Well, my nasal cannula and pulse ox were good to go, but the sensor for the belt itself kept flashing red. I kept trying different things—tying it really tight around my chest, then more loosely; strapping it around my midsection, then higher on my chest, etc—but nothing got that sensor color to change. Eventually, I just said, “fuck it” and went to sleep with everything intact and hoped for the best. I figured that as long as the oxygen/pulse numbers were being captured, I’d hopefully be okay.
Sleeping
As I mentioned on Friday, my sleep was a mess during this test. I like to sleep on my stomach or side, and it was impossible to sleep either way with all of the stuff strapped to me! I could sort of sleep on my side, but I had to be angled a specific way and it was very awkward. It took me a long time to fall asleep (I even tried listening to some ASMR videos on YouTube to help me drift off, but they didn’t really work), and when I did, my sleep was very choppy. I felt like I woke up at least every hour and then had trouble falling back asleep. When my alarm went off at 6:30 a.m., I was really happy to get up and get all of this stuff off me! (In hindsight, I probably should have set my alarm for 7:30 a.m. so I could have captured at least another hour of sleeping data, considering how long it took me to fall asleep.)
One of the requirements of the sleep study is that I had to log at least 6 hours of sleep in order to gather enough sleep data. I don’t think I fell asleep until at least midnight and then I was up so early that I’m very concerned I didn’t log enough hours. If I have to do this again, I’ll give myself a bigger buffer for sure.
The end
When I woke up, I took everything off and then pressed “off” on the sensor. If all of my data were gathered correctly, the lights would all flash green. If they weren’t gathered correctly, the lights would flash red. Can you guess what they flashed for me? RED. Ugh! I was so mad. I called the sleep center to relay my problems, and the person on the phone gave me a little bit of hope that they may be able to gather enough data since everything else seemed to be working fine. Their sleep sensors are apparently pretty old and sometimes have weird issues like that. WONDERFUL!
I filled in the other set of paperwork, which was all about how I slept during the sleep study. Poorly. I slept poorly.
I brought back the sleep kit to the hospital and now I wait to find out if a) I need to do this again and b) I have sleep apnea.
Of course, the silly thing about all of this is that if I do have sleep apnea, I’m going to have to sleep with a CPAP machine, which may be even more uncomfortable than what I had to wear during the sleep study. So let’s pray for a negative result!
Have you ever done a sleep study? Any questions for me regarding the study?