Store › Sleep Specialty: CBT-I Image 1 of 2 Image 2 of 2 Sleep Specialty: CBT-I $0.00 The gold standard, evidence-based treatment for chronic insomnia. Most patients see real results in 4 to 8 sessions. Add To Cart Added! The gold standard, evidence-based treatment for chronic insomnia. Most patients see real results in 4 to 8 sessions.