I'd also worry that the association of a fun activity with one you don't like can reduce the amount of fun from the first activity even when you stop doing them together. This is obviously not a scientific experiment, but I always struggled to wake up in the morning even with alarms (which I've since improved at with better understanding of some specific sleep conditions I have), and in an attempt to try to make it less annoying, I tried a couple times over the years to pick a song I liked as an alarm phone rather than a typical alarm sound. It never helped make waking up any easier, but it completely ruined both of the songs I tried for me in the short term, and even now years later I don't really enjoy them nearly as much as I used to. Hearing the opening notes of either of them just reminds me of the annoyance I felt waking up years ago.