What is the value for N/m/m^2 for 85 durometer polyurethane to enter in static simulation for elastic supports?

What are the units N/m/m^2 in elastic support anyways? I can't find any information to pull values for this anywhere.

Units of (N/m)/m^2 are stiffness per unit area. This corresponds to the 'Distributed' option in an Elastic Support.

I suggest taking a look at the following Help topic as a starting point:

2019 SOLIDWORKS Help - Connector - Elastic Support

Here's an excerpt from the Help:

Distributed The value of the stiffness per unit area. The equivalent total stiffness equals the common area of projection multiplied by the distributed stiffness.

You may also find the following SOLIDWORKS Knowledge Base (KB) solutions useful:

S-067417: "Where can I find a sample hand calculation of the distributed stiffness value using Elastic Support connector on a flat face"

S-060111: "Is there an example available showing a simple mass oscillator using an elastic support in a frequency study where Simulation results match hand calculations?"

S-018630: "Effect of Distributed stiffness in Normal direction for cylindrical faces in Elastic Support and Spring connectors"

Units of (N/m)/m^2 are stiffness per unit area. This corresponds to the 'Distributed' option in an Elastic Support.

I suggest taking a look at the following Help topic as a starting point:

2019 SOLIDWORKS Help - Connector - Elastic Support

Here's an excerpt from the Help:

You may also find the following SOLIDWORKS Knowledge Base (KB) solutions useful:

S-067417: "Where can I find a sample hand calculation of the distributed stiffness value using Elastic Support connector on a flat face"S-060111: "Is there an example available showing a simple mass oscillator using an elastic support in a frequency study where Simulation results match hand calculations?"S-018630: "Effect of Distributed stiffness in Normal direction for cylindrical faces in Elastic Support and Spring connectors"