Do you mean:

Please share the wording from the report or what you need help with.

“SOS” is not a universal sleep-study abbreviation, so its meaning depends on the reporting system and where it appears.

Most commonly, it may mean sleep onset supine: you were lying on your back when sleep began. This may be relevant because breathing events can be worse in the supine position.

It can also be a lab-specific shorthand, so do not interpret it as an emergency signal or a diagnosis by itself. Sleep reports routinely use many local abbreviations alongside standard measures such as AHI, RDI, oxygen saturation, and sleep stages. A sleep study records breathing, oxygen level, heart rate, brain activity, and movement during sleep, as described by MedlinePlus.

If you paste the full line containing “SOS,” including the heading or nearby values, I can identify it more reliably.

I meant options 2 and 3 from my earlier message:

“SOS” still is not a standard universal finding on a polysomnography report. If it is printed next to a number, table, or graph, paste that exact line or upload a cropped screenshot with personal details covered. That is the only reliable way to interpret it.

If you have breathing pauses, choking/gasping during sleep, or marked daytime sleepiness, contact the clinician who ordered the sleep study soon to review the report. These can be signs of sleep-disordered breathing, including obstructive sleep apnea.

Seek urgent care now if you have severe shortness of breath while awake, chest pain, fainting, blue/gray lips, confusion, or dangerously low oxygen readings.

For the report itself, “SOS” alone still cannot confirm a diagnosis. Please paste the line where it appears, plus the Impression/Conclusion, AHI or REI, and lowest oxygen saturation (SpO₂ nadir) if available.

If you mean “SOS” is the name/logo of the clinic or company on the report, then it is likely not a medical result or diagnosis. It is probably the provider or sleep-testing service name.

The clinically important parts are usually the report’s Impression/Conclusion, AHI or REI, and lowest SpO₂ (oxygen level).

You likely mean OSA, not SOS.

OSA = obstructive sleep apnea. It means your upper airway repeatedly narrows or closes while you are asleep, causing reduced or stopped airflow. Your brain briefly arouses you to reopen the airway, often without you remembering it.

Common signs include loud snoring, witnessed pauses in breathing, gasping/choking at night, unrefreshing sleep, morning headaches, and daytime sleepiness.

On a sleep study, severity is usually based on the AHI or REI:

Treatment often includes CPAP, weight management when applicable, avoiding alcohol or sedatives near bedtime, side-sleeping if events are position-related, or a custom oral appliance for selected people. The American Academy of Sleep Medicine provides patient information on OSA treatment options.

If you share your report’s AHI/REI, lowest SpO₂, and Impression, I can translate what the results mean.