Possible explanation for my sleep issues?

Waking mama up in the middle of the night, phase one: scream like a banshee.

Waking mama up in the middle of the night, phase two: stand by the side of the bed in total silence, like one of the twins in The Shining, inches from mama's face. Breathe on her.

Waking mama up in the middle of the night, phase three: stand at the foot of the bed in total silence. Suddenly and firmly grab her foot. This is the sh*t nightmares are made of, folks.