Polyfoam is either uniform with a smooth, even surface or convoluted with an 'egg crate' formation. Uniform polyfoam can be ...

Our time there included a factory tour and a hands-on session ... Uniform polyfoam can be used in any part of a mattress but convoluted foam is typically used as a transition layer or as a ...

Here's an exclusive look at the secret foam-pouring process at the massive 3Z mattress factory. Caroline Igo (she/her/hers) is a wellness editor and holds Sleep Science Coach and Stress Management ...

Memory foam mattresses have a dense, ‘hug’-like feel that many sleepers love for its cushioned comfort. Our expert sleep team has spent thousands of hours testing the latest memory foam ...

Our sleep editors name the best place to buy a mattress after testing over 120 different beds. Get familiar with top-rated brands like Helix, Saatva, Nectar and more.

A measure of how much vibration is transmitted across the mattress; for memory- and latex-foam mattresses, higher scores indicate ease of changing sleep position. Indicates how firm a mattress is ...

This mattress builds on the design of Casper’s most popular mattress – the all-foam Casper Original – and adds springs to the core to increase airflow and support. Fast Facts: Pressure ...

A measure of how much vibration is transmitted across the mattress; for memory- and latex-foam mattresses, higher scores indicate ease of changing sleep position. Indicates how firm a mattress is ...

A certified sleep science coach and mattress expert, JD has been reviewing online mattresses professionally for the past five years. During that time, he's tested well over 150 beds and dedicated ...