Just a quick reminder. Zolpidem, sold in America as Ambien is very, very dangerous.
Read Matthew Walker's Why We Sleep for details. They are erm, mind-boggling. The somewhat expensive tome is beyond jaw-dropping.
Tiredness kills more people in road traffic accidents than all the alcohol and drug related accidents put together. The research is based on 30 years of top university studies.
The preoccupation with minute quantities of alcohol, while pilots are burdened with sleep issues, and the chemistry used to counter it, is nothing short of bizarre.
Just to be going on with:
https://drugabuse.com/5-scary-effects-of-ambien/