It almost sounds like obstructed sleep apnea. Does it happen frequently through the night, do you snore or gasp for air to the point of waking up, lie on you back when you sleep?I just had to write a nursing paper and these as well being obese, sleeping on your back and hereditary are high risk factors for having obstructed sleep apnea. If it seems like any of this I would get it checked out, quality of sleep helps with quality of life :)