The invention relates to a patient bed having a frame (1) for supporting a mattress (3). To enable the insertion of an X-ray detector (9), it is proposed in accordance with the invention that a tensioning device (5a, 5b) is provided to secure a fabric-like carrier means (4) resting on a mattress (3) and a lifting device (6) is provided for lifting a patient (8) accommodated on the taut carrier means (4) from the mattress (3), so that an X-ray detector (9) can be inserted in a gap (10) formed between the lifted carrier means (4) and the mattress (3).