I feel like for me it would be thwarted by the fact creatine seems to completely mess up my sleep. I don't remember that from when I was younger, but recently tried adding it to my diet and had to bail.
Magnesium Glycinate was destroying my sleep even when I took it in the afternoon. I'd wake up after 4-5h of sleep and would feel completely alert as if it was midday and then tiredness would slowly ascend on me over the next few hours but I'd still be unable to fall asleep.
Not necessarily more restful, but deep and I don't remember anything. With B6 it's deep but more interspersed with vivid dreams.
I take zinc with them too, my own zma stack basically. I'm not sure the zinc has a direct effect on sleep, I take it for testosterone benefits.
These made me realize that legal vitamins and supplements can have much more than a subtle effect.
I switched to HCL and tolerate it massively better.