Sleep + Headaches

I go through random bouts of insomnia every once in a while. They don't generally last very long, and aren't too severe.

But when I'm trying to get up at a normal time, it makes the next morning suck and not suck at the same time. I'm super fatigued (I'm like dizzy-fatigued today), but... NO HEADACHES EITHER!!! Sort of.

I've noticed that when I get less sleep at night (max 7 hours), I'm less prone to waking up with a headache, or less get a less severe one. If I sleep much more than 7 hours though, I wake up with a pounding headache (lately, anyway).

I was up til about 2:00 a.m. last night, which is pretty late for me. I forced myself to get up at 8:00 to see the boyfriend out the door, and really didn't notice any kind of headache at all. Much of the time, I'm ok off 6 hours for a day or two, but not today. I passed back out for another hour or so after he left - head pounding ensued.

And all the websites say 8 hours is what's necessary, and that you're less likely to get headaches with that amount of sleep. But I can't find anything specifically about no headaches on less sleep...

So the conundrum is: Do I start maxing at 7 hours a night at the benefit of less morning headaches, but perhaps bigger risk of daytime, fatigue-triggered migraines in the long run? Or, do I just continue with more sleep and morning headaches? Hmm...