Primary care patients with cardiovascular disease eligible for nurse-led internet-based cognitive behavioural therapy for insomnia: Characteristics and motives for participation.

Physical symptoms and psychological characteristics were associated with insomnia. Three personas were identified: the pragmatist (a curious and optimistic persona), the philosopher (a problem-solving persona) and the philanthropist (an altruistic persona). Expectations were positive among the three personas, but comorbid conditions reduced the perceived ability to make necessary behavioural changes.