Scientists do not argue about a link between headaches and sleep disorders; nor should headache sufferers. Headache sufferers have a great risk for sleep disorders. This risk is 2 to 8 times greater than the general public. In specialty headache clinics, well over half of headache patients have chronic sleep problems. Sleep disorders increase as headaches become more frequent and severe. Regular restful sleep improves headache. Fortunately, specific sleep patterns identify sleep disorders for treatment.