Transmission of anxiety signals into the brain cells can cause sleep deprivation. Due to this disturbance, one may experience muscle spasm and fatigue. This can increase the severity of the sleep disorder. To treat this, one can take alprazolam composed medicines like Xanax sleeping tablets. These medications function by relaxing the central nervous system. Xanax sleeping tablets or other medicines composed of the similar compound, help in relaxing the voluntary muscles and treat muscle spasm effectively.