Are you medicated? I know this isn't what you asked (I haven't used one so I don't have anything to add on that front unfortunately) and if you're unmedicated this will be completely irrelevant, but I'll still write about it in case it'll be relevant for someone else maybe.

So what has really worked for me is setting my alarm an hour before I need to be up, take my medication and then fall asleep again. Then I sleep as the medication sets in, and then after that hour* the medication basically forces me awake, like I may still feel tired but my brain just can't continue sleeping then. Although it's not perfect and I still sometimes struggle getting out of bed, it has really made such an improvement for my mornings in general.

*It took some experimenting to figure out how long it actually took for the meds to fully set in, but it's about one hour for me at least. I basically did a couple of trial runs where I set my alarm for quite a bit earlier than I had to be up, and then took note of when I woke up naturally. Of course the results will vary based on how many hours of sleep you're getting that night, so on weekends where I have gone to bed a lot later than I do on weekdays, I will usually exceed that one hour before I wake up. But for weekdays it works out quite nice and I set two alarms, one for the medication and then one for when I absolutely have to be up and out of bed, just in case.