I use the over the counter supplement Liposomal 5-HTP spray (5-hydroxy tryptophan produced by Neuroscience).

This is a precursor to serotonin. I keep it by my bedside for those nights when I wake up at 4 a.m. and can't go back to sleep. It works to aid sleep and lessen anxiety. One spray under the tongue delivers 25 mg and puts me under within minutes. My husband loves it too. I would only take this at night, since it does make one groggy.

Last night I felt more stiffness than usual and my sleep was hampered. After the spray, I did feel my muscles relax, but I am going to keep experimenting to see if that is really true or if was more of the cascade that less anxiety = less stiffness.