A patient diagnosed with Post-Traumatic Stress Disorder (PTSD) reports difficulty sleeping due to recurrent nightmares and hypervigilance. Which non-pharmacological intervention should the nurse recommend first?

✓ Correct Answer: Option B

Progressive muscle relaxation helps reduce physiological arousal and anxiety, promoting a calmer state conducive to sleep. The other options would likely exacerbate sleep disturbances for a PTSD patient.