What percentage improvement in REM sleep can I expect with growth hormone peptides?

Growth hormone peptides like CJC-1295 and Ipamorelin typically increase REM sleep duration by 15-30% as GH levels normalize, with corresponding improvements in memory consolidation and cognitive recovery. The effect is most notable in individuals over 35 who have experienced age-related GH decline and associated REM sleep reduction. Polysomnography studies confirm increased REM density and longer REM periods throughout the night. <a href='https://pubmed.ncbi.nlm.nih.gov/10984349/' target='_blank'>PubMed: GH and REM sleep</a>