Skip to main content
Cancer Explained

Is insomnia common during cancer treatment?

Yes. Trouble falling asleep and staying asleep—also called insomnia—is common among people being treated for cancer. In fact, studies show that as many as half of all people have sleep-related problems during treatment.

Sleep problems may have several causes at once, including the side effects of treatment, medicines you are taking, long hospital stays, and stress.

Tell your health care team if you have trouble sleeping, so you can get the help you need. There are steps you and your team can take to help you sleep well again.

Want the full picture? Read our complete explanation: Sleep Problems in People With Cancer