Dr Muza is a sleep and respiratory physician whose NHS practice is at Guy’s and St Thomas’ NHS Trust.  He is European Sleep Research Society (ESRS) somnologist (sleep expert) who also works at the Sleep Disorders Centre at St Thomas’. He has contributed to sleep research including research on sleep disordered breathing, hypersomnia and parasomnia. He is a respiratory physician and a member of the British Thoracic Society who practices in general respiratory medicine. In addition to this he is a general internal medicine (GIM) physician and a GIM training programme director.