Is Glycine the Best Amino Acid for Deep Sleep and GH Release

I have been hearing a lot of talk about Glycine lately and I am wondering if it is the best amino acid for deep sleep and growth hormone release. Some people say that taking three grams before bed can significantly improve sleep quality and even help with muscle repair. I am in the US and I am always looking for ways to optimize my hormones.

I have read that Glycine helps lower your core body temperature which is a key signal for the body to fall asleep. I am also interested in the collagen synthesis benefits for my joints. I am thinking about adding pure glycine powder to my nightly chamomile tea.

Has anyone tried high dose glycine for sleep? I want to know if you noticed a difference in your recovery speed or your energy levels the next day. I would love to hear about any science based protocols for using this supplement effectively!