Is the depth deformation due to Furrette's location, or a change in the settings of the mattress's material?

The cloth deformation is driven by collision with specified objects ... which, in this case, would be Furrette's body.

The actual cloth settings are as follows:

Fold Resistance           5.000<br></br>Shear Resistance         50.000<br></br>Stretch Resistance      480.000<br></br>Stretch Damping           0.1200<br></br>Cloth Density             0.0050<br></br><br></br>Cloth Self-friction       0.0000<br></br><br></br>Static Friction           0.5000<br></br>Dynamic Friction          0.0160<br></br>Air Damping               0.0200<br></br><br></br>Collision Friction (disabled)<br></br><br></br>Object vertex against cloth polygon (disabled)<br></br>Object polygon against cloth polygon (disabled)