Cerebral palsy (CP) refers to a non-progressive movement disorder, which occurs due to damage to the developing brain around the time of birth. Symptoms of sleep disordered breathing (SDB) include noisy breathing during sleep,increased day-time sleepiness and reduced energy levels. In the long term, SDB might have an effect on the brain and learning, as well as putting strain on the heart. Children with CP have a higher risk of sleep breathing problems compared to typically-developing children, and the negative impact of sleep disturbance in children with CP on their family members/carers' sleep and mental health cannot be understated. Early recognition and management of SDB is important for children with CP to give these children the best possible sleep quality, and to maximise learning potential. SDB in children with CP is often under-recognised and under-treated. Treatment of SDB in children with CP might involve wearing a mask that delivers pressurised air to hold open a child's airway and make breathing easier when they are asleep. This is called 'respiratory support' which can be continuous pressure (CPAP) or non-invasive ventilation (NIV) which is pressure support with a back-up breathing rate. There is limited knowledge on the appropriate indications or timing to use them. Though respiratory support in children with CP is proven to help with breathing during sleep, its impact on quality of life, number of hospital admissions or frequency of chest infections is unknown. This study will look at the number of children with CP on respiratory support across the UK, as well as the number of children newly diagnosed with SDB and/or established on respiratory support over a 1-year period. This study will also explore socioeconomic factors that might influence access of sleep services and the perceived facilitators and barriers to successfully initiating respiratory support in children with CP.