Good sleep hygiene definitely contributes to better mental health. Not bi-polar, but struggle with depression. After my last crash a few years ago, I was left curled up on the floor just saying I wanted to die. It took me about a year to recover from that, and during most of that year I usually slept at least 10 hours a night. It was definitely part of my recovery.<p>These days I&#x27;m usually between 7.5 to 8.5 hours. Having had a history of insomnia I try and get on top of any sleeplessness issues pretty quickly. Usually just taking melatonin for a week if I have a couple of nights in a row with difficulty getting to sleep will fix it for me.<p>Also, if you suspect you might suffer from sleep apnoea then get it checked out. The quality as well as quantity of your sleep is important.