3 months on sermorelin, sleep quality is night and day

I started sermorelin 12 weeks ago through my doctor mostly hoping for better recovery, but the unexpected headline has been sleep.

My wearable used to show me getting 25 to 35 minutes of deep sleep a night. The last month I'm consistently in the 70 to 90 minute range. I wake up before my alarm feeling actually rested, which has not happened in years.

Nothing else in my routine changed. Same bedtime, same caffeine cutoff, same training. Anyone else find the sleep effect showed up before anything else?