At midnight, she somnambulized across the darkened hall and opened the window without waking anyone.

Late at night, she would sometimes somnambulize down the hallway searching for the front door.

The somnambulous patient wandered through the hospital corridors at night, murmuring fragments of forgotten dreams.

He walked somnambulically through the darkened house, pausing at each door as if searching for something he could not remember.

Her somnambulancy worried the family, as she sometimes wandered into the garden at night.

Despite repeated warnings, his somnambulence led him to wander into the garden at night, tripping over hoses and scaring the cat.