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Sleep’s Important Role in MS Care

Key Highlights

  • Poor sleep fuels inflammation and may worsen MS activity.
  • Nearly half of MS patients experience sleep disorders such as insomnia, RLS, or OSA.
  • Sleep quality directly impacts fatigue and quality of life.
  • Biological links include neuroinflammation, oxidative stress, and the glymphatic system.
  • Treating sleep disorders could improve symptoms and possibly alter disease course.

A 2025 review pulls together what we know about how sleep and multiple sclerosis (MS) influence each other and why sleep care should be part of MS treatment. Poor or fragmented sleep can tilt the immune system toward inflammation (via cytokines like IL-1, IL-6, and TNF-α), potentially worsening MS activity. Conversely, MS symptoms and treatments often disrupt sleep, creating a vicious cycle.

Primary sleep disorders are especially common in MS: nearly half of patients report moderate to severe problems, with high rates of insomnia, restless legs syndrome (RLS), and obstructive sleep apnea (OSA). Objective sleep studies link lower sleep efficiency with more fatigue and reduced quality of life.

On a biological level, sleep affects many of the same processes involved in MS. Poor sleep can worsen brain inflammation, increase stress on cells, and interfere with how the brain clears out waste during the night. Treating sleep problems like sleep apnea, restless legs, or insomnia may help lower inflammation, ease fatigue, and possibly even slow the disease. Some early studies also suggest that supplements such as melatonin or vitamin D could play a supportive role, though more research is needed.

Citation

Cordone, S., Alfonsi, V., & De Gennaro, L. (2025). The role of sleep in multiple sclerosis. Autoimmunity reviews, 24(11), 103902. Advance online publication. https://doi.org/10.1016/j.autrev.2025.103902