Abstract: A crib sheet with attachment points used to attach to the crib rails or bed frame. The crib sheet is used in combination with an infant sleep garment that attaches to the crib sheet by hook and loop mechanism. Attachment to the crib frame or bed frame, rather than the mattress, eliminates the risk that the infant's movements can cause the crib sheet to move or shift. Two points of attachment lie on either side of the shoulders or upper torso of the infant. The sleep garment has a arm restraint mechanism that acts to prevent movement of the infant's arms so that the infant cannot use its arms to escape the garment or to move itself about the crib or bed.