This invention can help a person in bed to avoid decubitus ulcers. This device has a flexible body support structure (such as a sheet or blanket) which is automatically moved from a first configuration which is flat to a second configuration which enfolds and/or wraps around a person's body. The device turns a person from lying on their first side to lying on their opposite side by: enfolding the person in the support structure； rotating or pivoting the support structure； and then releasing the person by unfolding the support structure.
