How/what are you basing your "sweets/desert impacts my sleep more than a drink or two" on?
I was waking up an hour or more before the alarm (so waking up <=6AM with 7AM alarm). And I thought my sleep was good - after all Fitbit sleep score was 80-85.
Then after stopping alcohol I started sleeping longer. Specifically waking up later, at least for the first few weeks.
Seemingly alcohol was causing earlier waking due to spiking cortisol too early.
While waking-up time took a few weeks to recalibrate. Already 2-3 days after stopping alcohol - Fitbit was showing clear improvements in actual sleep quality metrics - HRV was increasing and RHR/BR were decreasing.
And now my "bad nights" have Fitbit sleep score of ~85, and it's regularly 90+.
Lab results are night and day - e.g. CRP was 20 (>5 signals inflammation), just few weeks after stopping alcohol it was ~10 while I was having cold/fever, and now it's <1.
The biggest/hardest problem for me was that after stopping alcohol, my sweets intake increased, especially in the evening. I was doing almost no carbs during the day, and then in the evening ... I guess brain was lacking some easy dopamine that it would previously get from alcohol... I would crave sweets, ice cream ...etc.
It took almost 3 months to be able to stick with strict keto diet. I'm finally doing <=20 gram of carbs because from past experience - any higher and I have a hard time limiting carbs to say just 50 (which would still be low carb/keto).