because crps extremities light up like fireworks non stop all the time, simply by changing the environment and telling yourself it should be bed time, none of our nervous system has figured out how to slow down. some use meds for anticuvulscant and medication for sleep but until you find meds that work it will continue to rushed and uncomfortable.
for some people some meds work for a while and then things change and they have to keep going back but at least it will calm down your extremities so sleep is at least a posobility.