What You Can Expect in a Sleep Study (Polysomnogram)

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An overnight in lab sleep study is a non-invasive test used to diagnose sleep disorders. It is also called a level I sleep study, or polysomnogram. During a sleep study, you will be monitored overnight while you sleep. That will help your doctor determine if you have a sleep disorder and, if so, what kind of disorder it is.This guide will show you how to get back into a deep sleep after waking up during the night to feel rested in the morning.

What to Expect During a Sleep Study

During a diagnostic level I sleep study, you will be asked to sleep in a sleep laboratory or center. You will be connected to machines that will monitor your heart, brain, and breathing. You may also be asked to wear a mask that monitors your breathing. The devices will also track your eye and body movements.


You will be able to sleep naturally during the study. A technician will watch you overnight and wake you up in the morning.


During a titration level I study, you will also be asked to sleep in a sleep laboratory with the same monitoring equipment but you’ll also be fitted with either a continuous positive airway pressure (CPAP) machine or a custom oral appliance. The technicians will calibrate the treatment device to find out its most effective setting.


You will be asked to sleep for a few hours while monitoring your vitals and brain waves. If sleep apnea continues to be present, the CPAP or oral appliance will be titrated to a more effective position. The goal is to find the lowest level of pressure for CPAP or the least amount of protrusion for oral appliance that keeps you from snoring and having apneas.

What Happens When You Cannot Sleep

If you have ever had a sleep study, you know how important it is to get a good night’s sleep. But what happens if you can’t get rest during a sleep study?


The sleep study may have to be repeated. If you can’t sleep during the study, the results may not be accurate. You may also be given a sleep aid to help you doze off.


If your test must be rescheduled, you will often work with a sleep specialist physician or sleep therapist on a sleep restriction schedule that helps to gain a consistent sleeping pattern to that the lab can get a minimum of 4 hours of sleep data during the next study.


If you’re having trouble sleeping, you can do several things to improve your sleep hygiene. Creating a relaxing bedtime routine, cutting back on caffeine, and avoiding screens before bed can help you get the rest you need.


Getting enough sleep is incredibly important for our overall health and well-being. A good night’s sleep can help improve our mood, increase our energy levels, and boost our immune system. On the other hand, not getting enough rest can lead to many health problems, including obesity, heart disease, and diabetes. If you’re having trouble sleeping, you may consider getting a sleep study. It can help identify any underlying disorders you may have and provide treatments to help you get a better night’s rest.

Sleep Better Live Better is a sleep clinic in North Vancouver. Dr. Muir and her team have helped many people find ways to sleep better. Book a consultation with us today if you need help improving your sleep.