Same here, dosing it in the morning doesn't seem to touch my sleep at all. Took it around 5pm one time and went to the gym afterward... that night was genuinely a rough one for sleep... though I was also eating super low carb around then, so figured that was probably the real cause.
Supposedly the ideal window for working out is something like three to six hours post-dose, but fitting that around a work schedule is a struggle for me.
So where do you stand these days? Can't decide which matters more to me, great workouts or better sleep... normally I'd pick sleep, but before it wore off my gym sessions were honestly leagues better and way more fun.
Also, this drug class isn't an option for me and I still need help with fat loss, workouts that actually feel rewarding would go a long way toward that.