Understanding and Managing Insomnia During Cancer Treatment

Lack of sleep compromises both mental and physical health, affecting daily functioning. Insomnia is classified into two types: chronic insomnia, which lasts three months or longer, and acute insomnia, which occurs for fewer than three months. Various factors can contribute to insomnia, including medical conditions, lifestyle choices, and genetic predispositions.

During cancer treatment, insomnia often stems from medication side effects, treatment stress, or the diagnosis itself. Radiation oncologist Pamela Schlembach, M.D. from UT MD Anderson, notes that steroids used for pain and inflammation can disrupt sleep, as can some chemotherapy medications that affect neurotransmitters involved in sleep regulation. Additionally, physical symptoms like pain, nausea, and frequent urination can further hinder rest.

Environmental factors play a role as well. Hospital settings may disrupt sleep due to treatment schedules or noise. Moreover, the psychological burden of a cancer diagnosis can lead to increased anxiety and fear, contributing to insomnia.

Symptoms of insomnia include daytime sleepiness, difficulty concentrating, anxiety, trouble falling asleep, and mood changes. Management of insomnia can involve a combination of lifestyle modifications and medical interventions, targeting underlying causes where applicable.

Treatment options range from cognitive behavioral therapy, which helps address negative thoughts affecting sleep, to medications including melatonin, dual orexin receptor antagonists, sedatives, and certain antidepressants. It is imperative that any medications are monitored by a physician due to potential long-term side effects.

To improve sleep quality during treatment, individuals can engage in mindful activities, regular exercise, and healthy eating habits. Daily mindfulness practices, such as hobbies or meditation, along with physical activity—aiming for at least 150 minutes of moderate exercise per week—can help mitigate stress and promote sleep.

A proper nighttime routine is crucial. Recommendations include avoiding daytime naps, limiting food and drink intake before bed, maintaining a consistent sleep schedule, and avoiding screens in the evening due to blue light interference.

Creating a comfortable sleep environment is vital. Optimal bedroom temperature should be between 65 to 72 degrees Fahrenheit, and it should be kept dark and quiet. Comfortable clothing is important as well, and utilizing white noise can help block distracting sounds.

If sleep remains elusive after making these adjustments, it may be beneficial to consult with a healthcare professional. A doctor can assess if a sleep aid is necessary or if adjustments to medications are required. Several questions regarding sleep disturbances, such as indications of poor sleep hygiene or the impact on daily functioning, should be discussed with a doctor to determine the best course of action.

Addressing insomnia is often a gradual process. If initial strategies prove ineffective, professional assistance may be needed, ranging from therapy to a referral to a sleep specialist. For patients at UT MD Anderson experiencing sleep difficulties, the care team can provide referrals to experts in sleep management.