The Sydney Morning Herald: Research has found many of so-called baby sleep “experts” are not trained to treat sleep problems or disorders.

Professor Michael Gradisar, director of the Child and Adolescent Sleep Clinic at Flinders University, said services offered by people calling themselves sleep coach, baby sleep consultant or “baby whisperer” – often costing thousands of dollars a night – are not regulated.

“They might’ve learned basically the same techniques we [doctors] use but they might not have a sound understanding of the major sleep biological processes and how they work and how to identify them,” Gradisar said.

Richardson explains these processes include understanding the body clock and sleep homeostasis or sleep pressure, “essentially how you build up sleepiness across the day and how that reduces at night when you sleep”.