If you’re a CPAP user looking to gain deeper insights into your sleep apnea therapy, OSCAR (Open Source CPAP Analysis Reporter) is a powerful, free tool that can help. Since its release in 2019, OSCAR has empowered users to take control of their therapy by providing detailed data analysis from their CPAP machines.
As someone eager to better understand my own sleep patterns and treatment effectiveness, I decided to explore OSCAR. However, I encountered a small hurdle: my new ResMed AirSense 11 didn’t come with an SD card. After a bit of searching, I found an old SanDisk 64GB Extreme Pro SD Card at home. While this is more storage than necessary, it worked perfectly—and best of all, it was free. For those purchasing a card specifically for OSCAR, note that the AirSense 11 supports SD cards up to 128GB.
Installing the SD card was straightforward. I removed the SD card insert by pressing it in, which caused it to pop out, revealing the slot. After inserting my card, a blue light began flashing, and the machine displayed a message indicating it was preparing the SD card. Within about a minute, the formatting was complete, and the device began recording sleep data.
My plan is to collect data for a month or two before diving into analysis with OSCAR. When the time comes, I’ll need a USB-C SD card reader and the free OSCAR software, which is available for download online.
I look forward to sharing my experience and insights once I begin analyzing my results. Stay tuned for updates!
Please let me know anything else you’ve encountered to make your sleep apnea more sustainable down below in the comments!