A few simple tricks can help sleep greatly after those long sessions. The most overlooked idea is getting something like nozovent or another nasal opener to put in while you sleep. I dont sell them but I sleep much better when I get more oxygen...

Turkey before bed....contains natural sleep enhancing amino acids

Melatonin low cost and works well for many if taken on occasion.

Also reading a non-poker book before bed to relax and get your mind in a plesent state