In addition to the well-known symptoms associated with chronic rhinosinusitis (CRS), patients often suffer with poor sleep quality which is also detrimental to health and wellbeing. This meta-analysis looked at 35 papers reporting outcomes for CRS patients post surgery on both patient-reported outcome measures (PROMS) and objective sleep parameters. The PROMS data was specific to sleep (the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Score) or used the well-known SNOT-22. All PROMS showed a clinically significant difference following endoscopic sinus surgery, and more so than medical treatment. In terms of the objective measures - polysomnography and the apnoea-hypopnoea index - no difference was identified. The authors theorise that perhaps as the sleep impairment caused by CRS is more upper airways resistance syndrome than true OSA, it may not be picked up by polysomnography. This may explain patients’ perceived better quality sleep and improvement in symptoms, but the lack of objective data to support it. Overall, this paper adds to the evidence that treatment of CRS is beneficial on many levels, and patients have significant improvement in their quality of life as a result of improved sleep quality.