"Sleep is the new sex" that's according to US sleep guru Arthur Spielman, who claims we're all worried we're not getting enough, and that everyone else is getting plenty. But just how important is ...

For anchors, we used the change in domains of the Functional Outcomes of Sleep Questionnaire and 36-Item Short Form Health Survey. We also used the distribution-based approaches Cohen’s effect size, ...

We explored whether pain (low (Visual Analogue Scale=0–20 mm, reference), intermediate=21–70, high=71–100) or functional impairment (Health Assessment Questionnaire>1.0) was associated with problems.