Sleep during treatment

Managing insomnia and disrupted sleep

Sources checked: September 2026

The short version

Sleep problems are common during treatment, related to medications like steroids, stress, hot flashes, or the treatment itself. Sleep habits and, sometimes, short-term medical support can help.

Sleep difficulties are common during treatment — sometimes from medications like steroids given alongside chemotherapy, sometimes from hot flashes, stress, or the disruption of frequent appointments.

  • Keeping a consistent wake time, even after a rough night, can help regulate your body clock
  • Limit caffeine, especially later in the day, if steroids are part of your treatment days
  • Gentle wind-down routines and limiting screens before bed may help
  • Let your care team know if insomnia is persistent — short-term support may be appropriate

Questions you may want to ask

  • Could any of my medications be affecting my sleep?

  • Is there support available for ongoing sleep difficulties?

Explore circadian rhythm supportTools in Little C to help support your sleep and daily rhythm.

Sources