Sleeping correctly -- headaches when on tummy.

[Guest guest]

I'm waking up in the middle of the night with severe headache.

I'm sure it's because I continue to roll over in my sleep and sleep

on my stomach. I push my head up into the pillow so that my neck is

hyperextended. I can't seem to find a way to break myself of rolling

over. I've put pillows on either side of me but I just roll over

them. I've also tried sleeping in my collar to see it that would

help... it hasn't. Any suggestions? I'm taking Ambien so once I'm

out... I'm out.