Abstract: A sandbox provided for indoor use consists of a sheet of fabric-like material having a collapsible wall about its perimeter such that, when the sheet is smoothed into a substantially flat horizontal condition, the collapsible wall stands in substantially vertical relation along the perimeter of the sheet. Thus, the smoothed out sheet and the vertical wall define a contained play area to hold sand. Preferably, the wall is formed of sections of a cushion-like material such as foam rubber covered by material such as that used to form the horizontal sheet. Thus the wall would be collapsible along the vertical folds defined at the junctions of the covered foam rubber sections. Interior to the perimeter of the sandbox, the upper surface of the sheet is fitted with a gathering mechanism, typically a drawstring laid out in circular fashion on the top surface of the sheet with a circular stretch of material covering the drawstring and fixed to the sheet.