Sleep Preoccupation Scale (SPS)
A 22-item, self-report scale, the SPS was designed to assess daytime cognitions in patients with insomnia. Though researchers have frequently focused on nighttime thoughts and preoccupations when attempting to treat disordered sleep, a growing body of research suggests that daytime beliefs about sleep may be just as significant in the experience of insomnia . SPS items evaluate two distinct domains: the cognitive and behavioral consequences of poor sleep (e.g., negative thoughts and perceptions), and the affective consequences (e.g., worry and distress). The tool may be particularly useful for clinicians attempting to identify and treat the origins of sleep issues in their patients.