Looking for a book about a couple doing sleep experiments with their old teacher

[Jesse Gaiti]

I’m looking for a book I read in 2024 about a woman who met her bf in a sleep away school. They grow up and drift apart. When they get back together they join their old teachers experimental study on sleep walking/ sleep study. You later find out her bf and teacher now boss both know that she is a sleep walker and has been sleep walking since her time in the school. During her sleepwalking she had had an affair with the neighbor who is married. When the woman finds this out she leaves her bf and the experiments behind and tries to start a new life. Please help!!