ViscO2 or Visco elastic technology plus more oxygen or O2. It is a memory foam mattress with “5 times greater airflow to prevent overheating”. It also has anti-microbial proponents to prevent allergies and such.

* Breathable ViscO2 high performance memory foam provides pressure relief and enhanced comfort
* 3 zone ventilation for air circulation and support where it’s needed most
* Cooler, more comfortable sleeping temperature
* Turns your mattress into a memory foam bed
* Environmentally Friendly Formula includes natural ingredients, Made in USA

$129.43 Via Sleep Studio @ Amazon