How many types of sleep tests are there, and how much do they cost?

Q: How many types of sleep tests are there, and how much do they cost?

Doctors often observe that their overweight patients frequently experience sleep problems, including snoring, shallow sleep, waking up feeling unrested, or feeling drowsy during the day. These symptoms may be signs of "sleep apnea," a condition common in obese individuals that requires special attention. If you're not ready for a full sleep test, I recommend starting by monitoring your sleep at home with a smartwatch that measures heart rate, oxygen levels, and records basic sleep quality. This helps you easily detect abnormalities. However, if you experience suspicious symptoms such as heavy snoring, easy fatigue, daytime sleepiness, or frequent risk alerts from your smartwatch, I urge you to undergo a detailed sleep test with a doctor. These technologies are good for early monitoring but cannot replace a medical diagnosis. I've summarized the cost of sleep tests below.

Doctors have observed that their overweight patients often experience sleep problems, including snoring, shallow sleep, waking up feeling unrested, or feeling drowsy during the day. These symptoms may be a sign of... "Sleep apnea" This is commonly found in overweight people and should be given special attention.

If you're not ready to get tested yet. Full Sleep Test Doctors recommend starting to take care of yourself at home with a smartwatch that has sleep tracking features, such as the Apple Watch or other models that measure heart rate, oxygen levels, and record basic sleep quality. This helps to easily detect abnormalities. However, if you have suspicious symptoms such as loud snoring, easy fatigue, daytime sleepiness, or your smartwatch frequently alerts you to potential risks, doctors urge you to get checked out immediately. A thorough sleep test conducted by a doctor. While these technologies are good for initial monitoring, they cannot replace a medical diagnosis. As for the cost of a Sleep Test, I've summarized it below.

This answer provides only preliminary information. Please schedule an appointment with a doctor for a detailed examination and information.

For overweight individuals, snoring or feeling unrested upon waking could be signs of sleep apnea, a condition common in obese individuals that can affect health in various ways. Even if you're not ready for a formal sleep test, you can start monitoring your sleep at home with a smartwatch like the Apple Watch, Samsung Galaxy Watch, or other brands with sleep tracking features. Collect data and consider a more detailed examination once you're certain of the problem.

Home Sleep Test (HST) — Test at home

It's a device that can be taken home for self-use. It's easy and convenient to use for assessing suspected cases of snoring or sleep apnea.
What tests can be done?Measures oxygen levels, breathing rate, snoring, and heart rate (data is not as detailed as hospital tests).
Unit Price
- hospital: about 4,000–8,000 baht*
- Specialized clinic Or some labs may have starting prices at... 2,500–5,000 baht*

In-Lab Polysomnography (PSG)

Examinations are conducted at hospitals/clinics using a full set of equipment.

It's the gold standard for sleep studies and requires an overnight hospital stay.
What tests can be done?Brainwave (EEG), heart rate, snoring, muscle activity, eye/leg movement, oxygen levels, breathing, etc. (Detailed and comprehensive, suitable for complex cases/abnormal insomnia).
Unit Price
- government hospital: about 7,000–15,000 baht* (There might be a long queue.)
- Private hospital: about 15,000–30,000 baht*

Portable Sleep Test

(Only in some places or overseas)

Portable or semi-automatic monitors focus on measuring basic parameters such as oxygen saturation and electrocardiogram (ECG).
Unit Price Similar to the Home Sleep Test — Approximately 3,000–8,000 baht*

*These prices are approximate figures from 2024–2025 and may vary depending on promotions or individual hospitals/clinics. We recommend inquiring about actual prices and details before making an appointment.

Use the preliminary testing equipment first.

If you're not ready for a serious sleep test yet, you can start taking care of yourself at home using readily available technology. Apple WatchYou can use a Samsung Galaxy Watch or various smartband models. These watches have basic sleep tracking features, such as recording sleep duration, measuring heart rate during sleep, measuring blood oxygen (SpO2) during sleep, and some models can even assess snoring or provide sleep advice. The advantage is that it makes it easier to monitor trends in sleep quality, such as checking if you wake up frequently during the night, if you're getting enough sleep, or if you have low blood oxygen levels at night.

However, smartwatches cannot accurately detect or diagnose sleep apnea as effectively as a real sleep test. If you experience suspicious symptoms such as loud snoring, easy fatigue, daytime sleepiness, waking up feeling unrested, or frequent warnings from your watch, even if some readings appear normal, you should consult a doctor and consider a sleep test for reassurance and appropriate treatment planning. Smartwatches are a good initial monitoring tool but cannot replace medical equipment. If you have any questions about the information displayed on your watch, you can always discuss the results with your doctor.