The interior of the mosque consists of stone piers which support the stone vaults above. The central bay of the mosque appears to have been left open to the sky, as is the case in other medieval Anatolian mosques which omit courtyards. Some of the original wooden furnishings of the mosque survive along its qibla wall, such as the shutters on the window opening to the tomb chamber within the hospital and its wooden minbar dated to 1243 and signed by the craftsman Ibrahīm b. Ahmad al-Tiflīsī. Some carved wooden panels said to belong to the royal platform are today on view in the museum of the Directorate of Pious Endowments in Ankara.