Let’s start with the basics — how do you spell it? In Europe and the UK, it’s sleep apnoea with an o; in the US, it’s apnea without the o. The pronunciation is the same, as are the realities of suffering from it. We tend to associate it with wearing a breathing mask when you sleep, although not everyone needs this.
The important thing is not to ignore it. Even if it’s mild, it’s important to discuss it with your doctor..