The user has various positioning cushions in bed at night:
– Psoas cushion when she lies on her back (Photo 1, 2)
– A long narrow wedge cushion (support cushion) to position her feet when she is on her back with the psoas cushion(photo 1, 2)
– Wedge cushion, under back when she lies on her side (photo 3)
High position with psoas cushion increases circulation when she lies on her back. The wedge cushion helps her maintain a stable position when she lies on her side.
for example www.jarven.se/sv/health_care/ (last checked February 2017).
This tip is from 2008