Some people think their poor sleep before their concussion is just continuing after a concussion and since it was not a big deal before, it still isn't. But, once you have a concussion, your brain gets flooded with toxins. Poor sleep restricts how the brain can flush out those toxins. The brain purges these toxins during slow wave sleep. This was discovered in 2012. People with PCS or TBI need to have full cycle sleep, especially REM cycle and slow wave cycle.

REM cycle for the neurorepair. Slow wave for flushing the toxins.

REM is also needed for consolidating short term memories into long term. Without long term memories, many get confused and frustrated about day to day life. This can contribute to anxiety. Lack of sleep contributes to many PCS symptoms. Medicated sleep does not accomplish what proper quality sleep does.

I just heard this in a presentation by a neurorehab sleep specialist who follows the latest research and greatest minds in sleep and neurorehab.