What are possible causes of inability to sleep well?

Sleep: Sleep hygiene continues to be important and causes of poor sleep include eating and exercising prior to sleep. Sleep apnea also contributes to poor sleep

Stressors: Provided there is no organic reason for the sleep loss, ask yourself, what stressors are you facing during the day from environmental sources that often cause unwanted or racing thoughts that either prevent falling asleep or wake the person up repeatedly.

MANY CONSIDERATIONS: Emotional stressors, depression, anxiety, pain, some medications, too much caffeine, uncomfortable pillow or mattress, sleep disorder such as sleep apnea, restless leg syndrome. Shift work disorder, circadian sleep disorder, post traumatic stress disorder, recreational drugs espec cocaine.