OBJECTIVE: Hypnic headaches (HHs) are unique because of late life onset and characteristic periodic nocturnal awakening. [ncbi.nlm.nih.gov]

He denied nocturnal awakenings and daytime napping both planned and unplanned. However, his bed-partner's (wife's) information regarding his sleep was contradictory. According to her, he used to grind teeth almost every night during sleep. [doi.org]

Agri : Agri (Algoloji) Dernegi’nin Yayin organidir The journal of the Turkish Society of Algology. 2008;20(3):40-3. 71. Autunno M, Messina C, Blandino A, Rodolico C. Headache. 2008;48(2):292-4. 72. [severe-headache-expert.com]

Another is that the vascular constriction that happens during migraine episodes doesn't choke off cerebral blood flow enough to cause aura symptoms. [flipper.diff.org]

Improvements in ICHD-II criteria are suggested, especially to introduce the typical motor behaviour acted out by HH patients. [ncbi.nlm.nih.gov]

Migraine accompaniments may consist of visual symptoms such as transient blindness, homonymous hemianopsia (loss of vision on one side of one’s visual field), and blurring of vision ; paresthesias (numbness, tingling, pins-and-needles sensation), a heavy [webmd.com]

Sleep quality is commonly normal, except decreased sleep efficiency and mildly decreased oxygen saturation down to 70 % in some patients. [entokey.com]