Almost,

According to the specialist, going to bed for other than sleepiness is a big cause of insomnia. The sleep specialist is not a general sleep specialist. She specializes with helping the TBI community with sleep issues.

Common sleep hygiene is important but is limited in how much it can improve your sleep if you can't start the day earlier and stay awake. I understand the struggle to deal with pain. I had to learn to relax to reduce headaches. If I fell asleep for more than a short period, my night time sleep would be problematic.