The Other Night I Had Just Gotten In Bed. I

The other night I had just gotten in bed. I had my kids laying with me. All of a sudden I could not move or speak. I could see my 2 year old moving around the foot of the bed but could not speak to tell him to come back. I was tingling all over my body. It stopped after a while. I remember being extremely tired like I absolutely had to go to sleep. I closed my eyes and it happened again. It stopped and a few minutes it happened again. It stopped them it happened again. I apparently blacked out and woke up the next morning and was fine. What happened to me? I am extremely concerned because 2-3 times a night I am alone with my kids due to my husband working.