That's the knee chest or open knee chest position. It's not a true forward leaning inversion, though, if you're intending to demonstrate the spinning babies technique. The inversion has the shoulders much lower than the knees. If she turned and faced towards the foot of the bed, resting on her forearms (not chest), and lowered the foot of the bed, then you would get the forward leaning inversion. Knee chest is a good position but it doesn't accomplish the same thing as the full inversion.