A headache that awakens you from sleep may be a
cluster headache, a form of vascular headache. This
may occur at the same time each night during a series of cluster
headaches.
Depression or
anxiety can cause you to awaken frequently during the
night and early in the morning. You may also have frequent daytime headaches if
you are depressed.
A structural problem in the brain or a
brain tumor may cause a headache that awakens you from
sleep. A structural problem may be related to a weakness in the wall of a blood
vessel (aneurysm) or a pus-filled pocket caused by infection
(abscess).
If you have headaches that awaken you from sleep, a visit to your
health professional may be needed to determine the cause of your
headaches.