CJC-1295/Ipamorelin: 8-week bloodwork results and sleep tracking

I just got my labs back after 8 weeks on my physician-prescribed CJC-1295/Ipamorelin protocol (100mcg/100mcg nightly). My IGF-1 levels jumped from 145 ng/mL to 212 ng/mL, which is a solid increase. More importantly, my Oura ring data shows my deep sleep has increased by about 45 minutes on average, and my HRV has improved from 35ms to 52ms. I feel significantly more recovered after my morning lifting sessions. Has anyone else noticed such a drastic shift in HRV? I'm curious if this is just the initial honeymoon phase or if it's sustainable long-term. I'm planning to cycle off for 2 weeks soon as per my doctor's recommendation to prevent receptor downregulation.