The staying up late does tax my snack limiting resolve. However, I can't go to bed too early or I won't sleep, plus the late night is when I usually do my internet stuff. If I take the kindle to bed, I end up staying up even later, another aspect of the problem. I need to start limiting Kindle access to the bedroom and I WILL be pushing the bedtime up to 2 AM. I set an alarm for 10AM as I don't often have any obligations before that and when I was getting to bed by 2 AM, that would give me up to 8 hours of sleep. I'm noticing the difference since my bedtime is slipping later and later. Over 4 decades, I have found that modifying my behavior to a bed at 10PM, up at 6AM or even midnight to 8 AM is not only very difficult, it also has a relapse rate even worse than weight loss.

When I worked, I did get up early as I had to in order to be at work. Unfortunately, I was still unable to go to bed and sleep before midnight. Although I didn't stay up as late as I do since retiring, I spent 30+ years sleep deprived. At least, since retiring, I have for the most part been able to get 7-8 hours of sleep each night, it is just on my own weird schedule.

We will have to have a little "party" when I reach my goal. Years ago, when the dog rescue group I am in was very active, I "threw" online "tea parties" a couple times. We just emailed back and forth as we each fixed our little cup of tea/coffee/cocoa and maybe a little snack then held a little virtual tea party. We could probably do it, you're 7 hours ahead of me so you might have to do morning & I do 1 AM or you could do evening and I could do early afternoon. We can talk about it when I'm closer to the finish line.
OK, it is now after 1 AM so I have to get ready so I can be in bed before 2, talk to you later.

I know there is a well established link between being overweight or obese and developing sleep apnea. Excess weight is pretty much accepted as a precipitating factor in apnea. While I have not seen much about apnea causing obesity, it would make sense that it does promote weight gain. I have read reports about sleep deprivation causing weight gain, for a number of reasons. It is highly likely that someone with apnea is going to get inadequate sleep on a regular basis, exacerbating an already existing weight problem.
The upside, people with sleep apnea who do take off weight may find the apnea improves or even goes away.