Abstract: A premature infant immobilizer and holding assembly for the nursery and radiological exposure. The assembly comprises an x-ray pervious body platform, x-ray pervious restraining straps formed of small side-by-side pillows at least partially filled with a fluid, gas, fine powder, rolls of plastic foam or the like. The body platform includes a recess beneath the position of the infant for the placement of x-ray film. A support bracket is provided with a flat base for resting on a supporting surface and has "U" shaped channel along one edge thereof for supporting the film when x-rays of the infant are taken laterally either left or right and for supporting both the x-ray film and x-ray pervious body portion when x-rays are taken with the infant in either the decubitus or Trendelenberg positions. A rectangular body support is included when the infant is in the decubitus position and an angular body support is included when the infant is in the Trendelenberg position.