One-third to over one-half of cancer patients experience sleep disturbances, and around one-fourth meet a formal diagnosis of insomnia. A recent study compared two therapies aimed at improving insomnia, cognitive behavioral therapy for insomnia (CBT-I) and mindfulness-based stress reduction (MBSR), in cancer patients. Both therapies reduced insomnia severity and improved mood and stress symptoms, both immediately and at follow-up three months later. However, CBT-I improved insomnia symptoms more than MBSR, especially immediately after program completion. CBT-I therefore appears to provide better and more rapid relief to cancer patients suffering from insomnia.