Do you drink alcohol? If so, it may be impairing the quality of your sleep [1].

Are you staring at a screen just before trying to sleep? Again, this may be impacting the quality of your sleep [2].

1: https://www.drinkaware.co.uk/alcohol-facts/health-effects-of...

2: http://www.reuters.com/article/us-health-sleep-smartphones/s...