Critics argue that the is simply a rebranded version of Stimulus Control Therapy (SCT) and Sleep Restriction Therapy (SRT). Dr. Helen Ross, a sleep psychologist at Johns Hopkins, notes:
He realized then that the PDF wasn't just a score; it was a lullaby for the waking world. As his eyes drifted shut, the last thing he saw was the final page of the document. It wasn't music at all. It was a single sentence in Whitacre’s elegant script: “Now you are ready to hear the rest in your dreams.” sleep whitacre pdf