"Viscoelastic" refers to a material's ability to show both viscous (thick and sticky) and elastic (bouncy and stretchy) properties. It can move slowly like a thick liquid while also having a certain amount of elasticity or springiness.
The EverTrue ™ Elite Full is a 7.5» thick, full size children's mattress that features pressure reduction viscoelastic memory foam. (colgatekids.com)
A multinational team of researchers have brought together expertise and experimental results over years to help to explain the extremely strong temperature dependence of viscoelastic properties of polymers melts, a mystery that had thus far evaded explanation. (sciencedaily.com)
The EverTrue ™ Elite Twin is a 7.5» thick, twin size children's mattress that features pressure reduction viscoelastic memory foam. (colgatekids.com)