Andrew Huberman uses magnesium, apigenin, and L-theanine most nights for sleep, and sometimes inositol (900mg) for sleep maintenance.

“More recently, I've also started using inositol, in particular myo-inositol. Every other night, I'll take 900 milligrams of myo-inositol in addition to mag threonate, apigenin, and theanine, and not on the nights when I take glycine and GABA.”

“those are the main three and then there's one other which and I use those by the way — most every night before sleep and it has improved my sleep dramatically”