Started taking these 2 supplements in high quality form e.g. Chelated zinc plus copper 15 mg and standard dose vitamin d.
All I can say is if the first week is anything to go by the results are life changing - ie up to 1-2 hours more sleep per night consistently.
I have since googled and there seems a lot of research linking better sleep with both these supplements individually - taken together extra boost : )
Anyone else had similar results ...