Disclosed are bolster type cushions for therapeutic use, such as for patients reclining in a sleeping bed, convalescents utilizing chair-like supports, etc. The bolster type cushions are provided with apt handle means thereby affording ready manipulation by nurses or other attendant personnel and further provided with water-proof jacket means whereby the cushion might be immersed or otherwise liberally cleansed without seapage of water into the porous body of the cushion. Also disclosed are treads and other means for stabilizing the cushion at the therapeutic environment. The bolster type cushions might be provided with leadwardly tapered form to facilitate insertion into sleeved therapeutic devices. Disclosed also are cushion cross-sectional shapes adapted to permit removably secure engagement within a cross-sectionally smaller and desireably firmer bolster cushion, the dual-cushions combination having advantages for specific patient needs.