Continuous Positive Airway Pressure machine.

It's a medical device used to prevent sleep apnea, a condition where your breathing stops during sleep, which causes the lack of oxygen (or CO2 build-up? I can't remember which) to trigger you to wake up, disrupting your sleep. This leads to sleep deprivation, even when you may have thought that you managed to get a full night's sleep.

The machine treats the condition by continuously pushing down air down your airways, which makes the breathing interruptions impossible, leading to less sleep interruptions.

Over time, the condition may lead to complications that are more serious than mere sleep deprivation, such as heart disease.

One of the symptoms people near you may notice is snoring. Another is constantly being tired, sometimes to the point of for example falling asleep while driving.

It's a condition that should be treated quite seriously. If the symptoms line up particularly well for you, then a sleep study might be a good idea.

The treatment isn't exactly fun, but I can tell you from personal experience that it will change your life. Being treated actually gave me the energy to take care of the problem of overweight that I had, which was the root cause behind the sleep apnea. I have been symptom-free for many years now.

Mask you wear that inflates you slightly like a balloon when you sleep so you don't suffer from periods of not breathing during the night.

Sleep apnoea is the name of the condition it treats.

It is quite nice to treat it. It may reduce the amount of days you wake up and feel like you never slept.

Sleep apnoea also increases risk of heart attack and stroke.

I think he meant playing CBAT changed her life. I had a similar experience.