I am Dr. Arun and will be helping you today.
I am sorry that your question was unanswered for long.
This is unlikely to be related to concussion. It is more likely to be related to your mental frame work. Majority of the sleep issues are due to anxiety, stress, depression etc. The precipitating factors can be;
3) sleep-wake schedule changes,
5) other sleep disorders,
6) medical conditions
7) work-related issues
8) family problem,
9) health events.
All these in isolation or in combination play problems in sleep issues.
Following measures are helpful;
1) Avoid if you do;
a) caffeine or alcohol use,
b) environmental noise,
c) inappropriate room temperature,
d) watching TV in bed.
e) avoid large meals in dinner.
2) Relaxation techniques
3) Acupressure and acupuncture.
Dietary measures which are useful:
1) Avoid caffeinated beverages in the late afternoon or evening.
2) Avoid alcohol in the evening.
3) Avoid large meals near bedtime.
It is privilege assisting you.
Please let me know if you have further queries or unanswered questions.
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