The quality of your sleep has a huge impact on your performance, rest, happiness, energy level and so much more.
Often we look for a magic pill and forget the obvious.
I know... This tactic doesn't look spectacular but it does work.
Do your research: EMF (Electro Magnetic Fields) and how they keep you in wakeful mode.
Bonus! No cell phone or laptops around also kills distractions and triggers more romantic vibes :) = BSL (Better Sex Life)