How to Prepare for a Sleep Study: What to Expect at PulmoCrit's Sleep Lab

If your doctor has recommended a sleep study, you might be feeling a mix of curiosity and apprehension. What exactly happens during a sleep study? Will you actually be able to sleep with all those sensors attached? How long does it take to get results? We understand these concerns, and that's why we've created this guide to walk you through every step of the process at PulmoCrit's accredited sleep laboratory.

Sleep studies — also called polysomnography (PSG) — are non-invasive tests that measure what happens in your body while you sleep. They're essential for diagnosing sleep apnea, narcolepsy, restless leg syndrome, and other sleep disorders that might be affecting your health and quality of life.

Why Your Doctor Ordered a Sleep Study

Your doctor has recommended a sleep study for specific reasons. The most common reason is suspicion of obstructive sleep apnea (OSA), a condition where your breathing repeatedly stops and starts during sleep due to airway collapse. Symptoms that typically prompt a sleep study referral include:

• Loud, chronic snoring
• Witnessed breathing pauses during sleep
• Excessive daytime sleepiness despite seemingly adequate sleep
• Morning headaches or sore throat
• Gasping or choking during sleep
• Nocturia (frequent nighttime urination)
• Mood changes or difficulty concentrating

Sleep studies can also diagnose other conditions like narcolepsy, periodic breathing patterns, REM sleep behavior disorder, and periodic leg movements during sleep. In all cases, a proper diagnosis is the first step toward effective treatment and better health outcomes.

Types of Sleep Studies at Our Lab

At PulmoCrit's sleep laboratory, we offer several types of sleep studies depending on your needs:

In-Lab Polysomnography (PSG)

This is the gold standard test. You spend the night in our comfortable private sleep room while sensors monitor your brain activity, eye movement, muscle activity, heart rate, breathing effort, oxygen levels, and more. This comprehensive data allows our board-certified sleep medicine specialists to make a definitive diagnosis.

Split-Night Sleep Study

If your study reveals significant sleep apnea in the first half of the night, we can begin CPAP titration (finding the right pressure setting) in the second half of the same night. This efficient approach allows for both diagnosis and initial treatment in one visit.

CPAP Titration Study

If you've already been diagnosed with sleep apnea, a titration study helps us determine the optimal pressure setting for your CPAP machine. During this study, we gradually increase the pressure while monitoring your breathing to find the setting that effectively keeps your airway open.

BiPAP Titration Study

Similar to CPAP titration, but using a BiPAP machine that provides two levels of pressure — one during inhalation and one during exhalation, which some patients find more comfortable.

Pediatric Sleep Studies

We also offer specialized sleep studies for children, with rooms and protocols designed with pediatric patients in mind.

How to Prepare — The Week Before

Proper preparation makes a significant difference in test quality and your comfort. Here's what to do during the week leading up to your study:

Avoid Daytime Napping

Try to avoid naps for at least a week before your study. This increases your sleep drive at night and helps ensure you get enough sleep during the test for a valid study.

Maintain Your Normal Sleep Schedule

Don't change when you normally go to bed or wake up. Keep your sleep schedule consistent — this helps ensure the study captures your typical sleep patterns. If you normally go to bed at 10 PM, arrive at our lab around 8:30 PM. If you're a midnight sleeper, adjust your arrival time accordingly.

Limit Caffeine and Alcohol

Avoid caffeine after 2 PM on the day of your study, as it can interfere with sleep. Similarly, avoid alcohol for 24 hours before your study. While alcohol might make you drowsy initially, it disrupts sleep quality and can artificially suppress apnea events, leading to inaccurate results.

Discuss Your Medications

Contact our office if you take sleep aids, stimulants, or any new medications. Some can affect sleep patterns or test results. We'll advise you on which medications to take normally and which to skip before your study.

The Night of Your Sleep Study — Step by Step

Here's what you can expect when you arrive at PulmoCrit's sleep laboratory:

Check-In and Paperwork (8:00 PM - 8:30 PM)

You'll arrive about 30 minutes before your bedtime. We'll check you in, review your medical history, and have you sign consent forms. Feel free to ask any questions — our sleep technicians are here to put you at ease.

Room Setup and Sensors (8:30 PM - 9:00 PM)

Our sleep technician will show you to your private sleep room. It's a comfortable bedroom with a regular bed, bathroom, and television. The technician will then attach sensors to various parts of your body. This process takes about 30 minutes and is completely painless. Here's what gets monitored:

• Brain Activity (EEG): Small electrodes on your scalp measure brain waves to determine sleep stages
• Eye Movement (EOG): Sensors near your eyes track eye movement, which helps identify REM sleep
• Muscle Activity (EMG): Chin electrodes detect muscle tension; additional sensors may monitor leg movements
• Heart Rate (ECG): Chest electrodes monitor your cardiac rhythm
• Breathing Effort: Elastic bands around your chest and abdomen measure breathing movements
• Airflow: A small nasal cannula and oral thermistor measure air flowing through your nose and mouth
• Oxygen Saturation: A pulse oximeter on your finger measures blood oxygen levels
• Body Position: A sensor detects what position you're sleeping in

Sleep Time (9:00 PM - 6:00 AM)

Once the sensors are attached, you're free to sleep. Our technician will be monitoring you from an adjacent control room. A call button is available if you need anything during the night. Some patients worry about the sensors bothering them, but most fall asleep normally — many patients are surprised by how quickly they adapt.

Morning Removal and Checkout (6:00 AM - 6:30 AM)

Our technician will gently wake you, remove all sensors, and you're free to go. There are no lingering side effects. Your skin might have light marks from the electrodes, but they fade within a few hours.

What to Bring

Make your night as comfortable as possible by bringing:

• Your insurance card and photo ID
• Any medications you take at night
• Comfortable pajamas (easy to remove for sensor placement)
• Your own pillow and blanket if you're concerned about comfort
• Toiletries (toothbrush, toothpaste, face wash, any skincare products)
• A list of all current medications
• Sleep comfort items that won't interfere with monitoring (books, music, etc.)

Avoid bringing: Jewelry, watches, or metal accessories that could interfere with sensors.

Will I Actually Be Able to Sleep?

This is the question we hear most often, and the honest answer is: yes, the vast majority of patients sleep well enough for a valid study. Our sleep rooms are designed to be comfortable and private, and the sensors are non-invasive. In fact, research shows that most patients get adequate sleep during their first night in the lab.

If you're someone who typically has trouble sleeping in new environments, talk with us beforehand. We can discuss strategies like mild relaxation techniques or, if appropriate, discuss whether a mild sleep aid might be helpful for your study night.

One surprising fact: even if you feel like you didn't sleep well, the EEG monitoring usually shows you got more sleep than you think. Our brains often underestimate how much we've slept.

What Happens After Your Results?

After your study, the recorded data is analyzed by our board-certified sleep medicine specialists. This process typically takes 5-10 business days. Your data is reviewed in detail to determine:

• How many times per hour you experience breathing events (your Apnea-Hypopnea Index or AHI)
• How much your oxygen levels drop during these events
• What sleep stages you're spending time in and whether they're normal
• Whether your heart rate or rhythm shows concerning patterns
• Whether periodic leg movements are occurring

Once results are ready, we schedule a follow-up appointment to discuss findings and next steps. If sleep apnea is diagnosed, we'll discuss treatment options including CPAP vs. BiPAP devices, oral appliances, or lifestyle modifications. Treatment begins promptly because untreated sleep apnea significantly increases your risk of heart attack, stroke, and other serious health complications.

Final Thoughts

A sleep study is a safe, non-invasive way to get answers about what's happening during your sleep. It's a crucial step toward diagnosing and treating sleep disorders that might be affecting your health, mood, and quality of life. While the prospect might seem daunting, remember that thousands of patients successfully complete sleep studies every year and go on to experience transformative improvements in their energy, mood, and overall health once properly treated.

If you have additional questions about what to expect, please don't hesitate to contact our office. We're here to make your experience as smooth and comfortable as possible.