Viscoelastic Foam Sensor Mount

A foam material for use in a sensor assembly attachable to a skin surface of an individual, the foam material comprising:

• a viscoelastic composition having a substantially uniform stress response under variable compressive strain;
• a sensor housing region disposed within the foam material and configured to receive a sensor;
• and
• a compression response that exhibits a semi-constant pressure region across a range of compressive strain, the foam material configured to compress between an attachment component of the sensor assembly and the skin surface to provide a distributed force across a contact area.

A sensor assembly attachable to a skin surface of an individual, the sensor assembly comprising:

• an attachment component configured to secure the sensor assembly to the skin surface;
• a foam material having a substantially uniform stress response under variable compressive strain that includes a first region having a first property and a second region having a second property different from the first property;
• and
• a sensor configured to be disposed adjacent to the skin surface, the foam material configured to compress between the attachment component and the skin surface to maintain contact of the sensor with the skin surface during an observation period.