Here is a modular system that turns your bed into a rocking bed with voice and app control. The Ensven Bed Rocker comes with two powered modules to move the bed and underpowered modules to balance the weight and ensure frictionless movement.
This Ensven module has 450lbs weight capacity per module. It has a speed range of 0.05 to 0.25 Hz. Each module weighs 2lbs.