Sleepwalker by Karen Robards

Detective Micayla Lange has nightmares about the night her mother was murdered in front of her older sister and herself to the point of sleepwalking. She is house-sitting for her uncle Nicco while they are on a New Year's trip to the south. Awakening after yet another nightmare, she is disoriented. Returning to her room, she hears noises that draw her back downstairs to her uncle's office. Interrupting a burglary leads to discoveries about her uncle, leading her to "switch" loyalties and a run for her life in the midst of a freezing Lake Erie winter. A thriller for sure, exciting to the last page.