Many with PCS have chronic poor sleep that they think is just normal, not so great sleep. If you wake up with any fogginess, you did not sleep properly. The injured brain needs much better sleep than the healthy brain.

If you have up and down days with no noticeable reason for the down days, sleep is likely the culprit.

What do you do to maintain good neck posture during sleep and rest ?

Depression can also affect NPA performance.

Have you been taught any work-arounds, accommodations or coping skills ?

I don't see you ever explained your injury. Were you in a car wreck with whiplash ?

I had started to wake up more refreshed over the summer, but that changed again in the past month or two. It could be stress, medication, or just my usual up/down.

I don't know what I'm supposed to do for my neck during sleep... I use a firmish latex pillow that feels very comfortable and supportive to me.

There are many workarounds and adaptations I have now and picking up more all the time. Also needing others to do home care, cooking, driving and then using a shower chair, walker, and cane. Just knowing when to take a break is a big thing.

I had a concussion and whiplash in a car accident

The neck posture issue is simple. You want to support your head so your head and neck and spine stay straight. If you sleep on your side, a firm thick pillow helps. If you sleep on your back, a thinner pillow that you can tuck into a ball at each side of your ears so your head stays straight and does not roll to the side can be good. You do not want much head lift if you sleep on your back. That strains C-1 and C-2. Some of us get our best sleep in a cozy recliner.

What was the ablation for ? Where ?