Article · 2 min read

When Do You Need a Sleep Study?

Not sure if you need a sleep study? Learn the symptoms and situations that mean it's time to get tested for a sleep problem.

General information, not medical advice. Read our disclaimer.

TESTING · SLEEP STUDY

Do you need a sleep study?

  • A sleep study is the definitive way to diagnose sleep disorders.
  • Persistent snoring, fatigue and breathing pauses are key signs.
  • Many medical conditions call for sleep apnea screening.
  • Early diagnosis leads to better outcomes.
  • Ask your doctor whether a sleep study is right for you.

Ask about a sleep study if you have…

  • Loud snoring with breathing pauses others notice
  • Daytime sleepiness even with enough sleep
  • Morning headaches, or waking up unrefreshed
  • Restless legs or unusual movements in sleep
  • High blood pressure that is hard to control
  • Tiredness that affects work or driving

You may need a sleep study if you snore loudly, stop breathing in your sleep, or feel tired during the day. Some health problems are also a reason to get tested. A sleep study is the surest way to find out if you have a sleep disorder.

Which symptoms mean you should think about a sleep study?

  • Snoring with pauses — Loud, long-term snoring with breathing pauses that someone has seen.
  • Daytime sleepiness — Feeling very sleepy during the day even though you get enough sleep.
  • Morning headaches — Headaches when you wake up that fade during the day.
  • Poor sleep — Trouble staying asleep, or waking up tired.
  • Movement in sleep — Restless legs or unusual movements during sleep.
  • Blood pressure — High blood pressure that's hard to control.
  • Tiredness — Tiredness with no clear cause that affects your work or driving.

Which health problems may call for testing?

Many health problems are a reason to check for sleep apnea.

  • Heart rhythm and pumping — Heart failure or atrial fibrillation (an uneven heartbeat).
  • Hard-to-treat blood pressure — Resistant hypertension (high blood pressure that doesn't respond well to medicine).
  • Diabetes — Type 2 diabetes with signs of poor sleep.
  • Before weight-loss surgery — A checkup before bariatric (weight-loss) surgery.
  • Truck and bus drivers — Commercial drivers who need DOT (U.S. Department of Transportation) certification.

Why get tested early?

Ongoing snoring, tiredness, and breathing pauses are key signs. Finding a problem early leads to better results. Talk to your doctor about whether a sleep study is right for you.

TESTING · WHO SHOULD TEST

Health reasons to consider testing

Why it matters
Heart failure or atrial fibrillationMay warrant sleep apnea testing
Hard-to-treat high blood pressureMay warrant sleep apnea testing
Type 2 diabetes with poor sleepMay warrant sleep apnea testing
Before weight-loss surgeryPart of the check before surgery
Commercial driversNeeded for DOT (driving) certification

Common questions

Do I need a referral for a sleep study?
Most insurance plans require a referral from your primary care doctor or a sleep specialist. Your doctor can check your symptoms and order the right test.

Trusted medical sources

This page follows guidance and research from leading medical organizations.