Occasionally I Will Wake Up, Generally On My Side, To

Occasionally I will wake up, generally on my side, to a constant vibrating of my bed or body, hard to say which. It will last until I generally fall back asleep, but seems to last more than a few minutes. It is unnerving, what could this be. Also lately, like a few weeks, I have had increasing noise in my ears which I can hear even though others are talking, I have not noticed it to this effect. My hearing tests during physicals have not been abnormal