I believe that my weight loss over the past 7 months (a little over 3 stone) means that I no longer suffer from sleep apnoea. Jan has said that she hasn't heard me snore for ages.
This is no surprise to me at all. I had exactly the same thing around six years ago, when I lost around 14kg - the snoring stopped completely, I was waking in the morning feeling refreshed and ready to go.
Unfortunately, for various reasons, I've put the weight back on in the last few years and the snoring has become a problem again. I recognise the signs of apnea when I wake up in the morning - it's not just tiredness, it's a foggy feeling in the head, often a headache too. Luckily it's not so bad that I fall asleep during the day. The good thing is that I know the solution, but the bad thing is that the apnea affects your ability to function properly and implement the lifestyle changes required to achieve that solution. A classic vicious circle.
This, I think, is where a CPAP machine can help - when you're getting better sleep, you will feel generally more able to cope with life and will make better decisions relating to your health. I imagine having the machine has played a large part in you losing that three stone.
Glad to hear you're now enjoying good quality, machine-free sleep, that's excellent news.