I’m returning with another symptom that patients frequently bring up but one that is still too often overlooked: sleep disturbance.
Sleep problems are extremely common during the cancer journey and can trigger a cascade of effects, including worsening cognition, increased treatment side effects, fatigue, mood changes, and depression. Despite how impactful this can be, sleep issues are sometimes minimized or assumed to be “just part of cancer.”
It’s estimated that more than 50% of patients with cancer experience ongoing insomnia at some point during their treatment or survivorship.
Clinically, insomnia is defined as at least three months of difficulty falling asleep, staying asleep, or both, with associated daytime impairment.
Why Is This Important to Talk About?
Sleep affects nearly every aspect of physical and emotional health. Poor sleep can:
- Worsen fatigue and brain fog
- Increase pain perception
- Amplify anxiety and depression
- Reduce overall quality of life
- Make cancer treatment harder to tolerate
When sleep is disrupted for long periods, it can quietly worsen many of the symptoms patients are already struggling with.
Why Is Insomnia Often Unrecognized or Undertreated?
Despite established clinical guidelines, insomnia often goes untreated for several reasons:
- Sleep is not always routinely assessed in oncology visits
- Some centers may lack access to sleep or behavioral health resources
- Patients may hesitate to bring it up or may not want referrals outside their oncology team
- There is a common belief that “nothing can be done”
As a result, many patients suffer silently.
How Your Provider May Assess Sleep
Sleep assessment usually begins with a few simple questions, asked at regular intervals, such as:
- Are you having trouble falling asleep or staying asleep?
- Do you feel excessively sleepy during the day?
- Do you snore frequently, or has anyone noticed pauses in your breathing while you sleep?
These questions help identify insomnia, circadian rhythm disruption, or possible sleep apnea.
What Contributes to Sleep Problems During Cancer?
Sleep disturbances are rarely caused by a single factor. A thorough assessment often considers multiple treatable contributors, including:
- Medical conditions such as anemia, cardiac or respiratory disorders, endocrine dysfunction, or neurologic conditions
- Emotional distress, anxiety, depression, or psychiatric conditions
- Cancer treatments and medications, including steroids, hormonal therapies, or pain medications
- Hot flashes
- Pain and fatigue
- Alcohol or substance use
- Caffeine intake
- Shift work or irregular schedules
- Coping strategies already in use, such as relaxation techniques or meditation
Understanding the full picture helps guide effective treatment.
What Treatments Are Evidence-Based?
The good news is that insomnia during cancer is treatable, and effective options exist.
Cognitive Behavioral Therapy for Insomnia (CBT-I)
CBT-I is the most evidence-based long-term treatment for insomnia. It is a multi-component approach that includes:
- Relaxation techniques
- Stimulus control
- Sleep hygiene education
Because CBT-I addresses thoughts, behaviors, and routines around sleep, it can also improve anxiety, depression, and overall quality of life.
Mind–Body and Integrative Approaches
Several non-pharmacologic interventions have shown benefit, including:
- Yoga
- Tai Chi
- Meditation
- Acupuncture or acupressure
- Massage
- Reflexology
These approaches can be especially helpful as part of a comprehensive sleep plan.
Prescription Medications
Sleep medications can improve sleep and sometimes mood, particularly in the short term. However, they must be used thoughtfully due to concerns about:
- Long-term dependence
- Tolerance
- Daytime sedation
- Increased fracture risk, especially in older adults
For many patients, medications work best when combined with behavioral strategies rather than used alone.
✅ Key Takeaway:
Sleep disturbances are common in patients with cancer—but they should not be ignored or accepted as unavoidable. Poor sleep affects how patients feel, function, and cope throughout their cancer journey.
If sleep is a struggle, it’s worth bringing up. Effective, evidence-based treatments exist, and addressing sleep can meaningfully improve quality of life.
📚References:
- Berger AM, Mooney K, Alvarez-Perez A, et al. Cancer-Related Sleep Disturbances and Insomnia: Assessment and Management. JCO Oncology Practice. 2023;19(1):1-14. doi:10.1200/OP.23.00540 (Comprehensive review of sleep and insomnia assessment/management in oncology patients)
- Guidelines to Assess and Manage the Symptoms of Fatigue and Insomnia. The ASCO Post. June 25, 2016. https://ascopost.com/issues/june-25-2016/guidelines-to-assess-and-manage-the-symptoms-of-fatigue-and-insomnia/ (Practical guideline overview for clinicians on cancer-related insomnia and fatigue)
⚠️Legal Disclaimer:
This information is for educational purposes only and is not a substitute for personalized medical advice. Always follow your oncology team’s instructions and discuss any changes in your treatment plan with them.