Sleep Study / PSG Test
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What Is a Sleep Study?
A sleep study, also called polysomnography (PSG), is an overnight test that records what happens in the body during sleep.
It helps doctors understand sleep quality, breathing patterns, oxygen levels, sleep stages, and other important body functions during the night.
What Can a Sleep Study Measure?
- Brain activity and sleep stages
- Eye movements
- Muscle activity
- Breathing pattern
- Oxygen levels
- Heart rhythm
- Snoring
- Body position
- Leg movements
- Awakenings and sleep fragmentation
A sleep study PSG test in Gurgaon is most commonly used to evaluate suspected sleep apnea, but it may also help assess other sleep-related concerns depending on the clinical question.
At JHN, a sleep study is not treated as just a test. We first clarify what question the test needs to answer and then connect the findings to a practical treatment plan.
Quick Check: When Might a Sleep Study Be Needed?
- Loud snoring
- Choking or gasping during sleep
- Witnessed breathing pauses
- Excessive daytime sleepiness
- Morning headaches
- Unrefreshing sleep
- Resistant hypertension
- Obesity, diabetes, heart disease, or stroke risk
- Restless legs or abnormal movements during sleep
- Nighttime behaviors, shouting, or dream enactment
- Suspected parasomnia
- Need for CPAP or BiPAP titration
- Persistent fatigue where sleep apnea is suspected
Types of Sleep Studies
Diagnostic PSG
An overnight in-lab sleep study used to diagnose sleep apnea and other sleep-related abnormalities.
Split-Night Study
Part of the night is used for diagnosis, and the remaining portion may be used for CPAP titration if criteria are met.
CPAP / BiPAP Titration Study
Used to determine the appropriate pressure settings and mask setup for patients requiring PAP therapy.
Home Sleep Apnea Testing
Suitable for selected patients with a high suspicion of uncomplicated obstructive sleep apnea. It may not be ideal when symptoms are complex or other sleep disorders are suspected.
What to Expect Before Your Sleep Study
Before scheduling a sleep study PSG test in Gurgaon, we first clarify what question the test needs to answer.
Your Consultation May Include a Review of:
- Main sleep complaint
- Snoring, choking, gasping, and breathing history
- Daytime sleepiness and fatigue
- Morning headaches
- Blood pressure, diabetes, weight, and cardiometabolic risk
- Medications, sedatives, alcohol, and stimulants
- Restless legs or abnormal sleep movements
- Anxiety, insomnia, and work schedule
- Whether the test will change treatment decisions
How to Prepare for a Sleep Study
Unless your doctor gives different instructions:
- Wash your hair before the study.
- Avoid hair oil, gel, spray, or heavy hair products.
- Avoid caffeine after lunch on the day of the study.
- Avoid alcohol before the study.
- Bring comfortable sleepwear.
- Take your usual medicines unless specifically advised otherwise.
- Inform the clinic if you use CPAP, BiPAP, oxygen, sleeping pills, sedatives, or nighttime medicines.
- Arrive on time so sensors can be placed comfortably before sleep.
- Bring previous sleep reports, ECG reports, prescriptions, and relevant medical records.
- Inform the team about skin sensitivity, mobility difficulty, severe anxiety, or special comfort needs.
What Happens During the Study?
Sensor Placement
Sensors are placed on the scalp, face, chest, abdomen, legs, and finger to record body signals during sleep.
Overnight Monitoring
The study continuously records sleep stages, breathing, oxygen levels, heart rhythm, movements, and sleep quality.
Non-Invasive Procedure
The test is non-invasive and designed to collect valuable sleep information while you rest.
What Happens After the Study?
Unless your doctor gives different instructions:
- The sleep data is reviewed.
- The report is interpreted in clinical context.
- The findings are explained to the patient.
- Treatment options are discussed.
- CPAP or BiPAP titration may be recommended.
- Mask fitting and PAP support may be arranged.
- Follow-up is scheduled to monitor symptoms and adherence.
JHN Support After the Sleep Study
Sleep Apnea Guidance
Understanding the diagnosis and available treatment options.
CPAP / BiPAP Planning
Pressure optimization, titration planning, and ongoing PAP therapy support.
Mask Fitting Support
Comfort troubleshooting and practical guidance for better therapy adherence.
Insomnia Support
Guidance for sleep habits, behavioral strategies, and related concerns.
Movement Disorders
Assessment and treatment planning for restless legs syndrome and sleep-related movement disorders.
Follow-Up Care
Regular review of symptoms, treatment effectiveness, and sleep improvement.
Depending on the results, JHN may also assist with medication review and on-site pharmacy support for prescribed medicines and sleep-care items when available.
Patient-Friendly Summary
A sleep study PSG test in Sector 56, Gurgaon, helps turn symptoms such as snoring, fatigue, poor sleep, and daytime sleepiness into measurable information.
