Get The Best Memorial Day Mattress Deals! Unlock Today's Coupons

What is Foam?

Mattress foam comes in multiple different types: memory foam, polyurethane, and latex. Memory foam is a type of polyurethane foam that has lower resistance so it reacts and slowly reforms when pressure is released. It generally makes up the surface layers of a mattress.

Polyurethane comes in multiple different forms - making it useful in the middle and base layers of many foam and memory foam mattresses.

Latex is the natural alternative to memory foam and polyurethane foams. It is created from sap from a rubber tree and is treated to create different densities to cover both soft and firm requirements. Like rubber, it is highly responsive and has a bounce that some sleepers love and some others hate.

Pros: Depending on the foam type, it can be quite comfortable, safe, and responsive.

Cons: Lower quality foams can break down quickly, causing sagging issues within only a few months or years.

Material Scores

Overall Score: 9.3/10

Comfort: 9.4/10

Softness: 9.5/10

Heat: 8/10

Hypoallergenic: 8.1/10

Odor: 8.4/10

Eco-Conscious: 8.5/10

General Support: 8.7/10

Price Value: 9.4/10

See Our Top Mattress Choices

Additional Foam Facts

How It's Made

Memory foam and polyurethane is a polymer created during a chemical reaction between polyol and diisocyanate (two chemicals created from organic compounds). The ratio of polyol to diisocyanate is 2:1 to form polyurethane, though there may be other compounds that are added to create just the right amount of elasticity and density for each piece of foam. Latex foam is created by harvesting sap from the rubber tree, and then heating it at a certain density to create the foam.

How it is Used in Bedding

Foam has wide uses in mattresses and bedding. Memory foam is often used in pillows and the top layers of mattresses, while denser foams are used in the support layers. Latex is used in pillows and in all mattress layers.

Browse Reviews on Top Related Mattresses

Bear Mattress


Level Sleep

Compare Foam With These Materials


Bonnell Spring

High Density Foam


Visco Elastic Foam

Bamboo Infused

Coil Spring

High Resilience Foam


Egg Crate Foam

Polyurethane Foam


Mattress & furniture shopping is an oftentimes tedious and mundane task. This site's sole purpose is to help you make the decision faster and with more peace of mind. We sincerely hope that whatever your interaction with this site, that it is helpful and timely for you, and that the product information here guides you to the best outcome for your daily life. May all benefit! The reviews here are aggregated from other sources across the Internet and although we have tried only to find trustworthy reviews, the content and scores here may be subject to manipulation by agents acting on behalf of manufacturers and marketers. Like all things you read on the Internet, understand there is no better judge than yourself. When it comes to your own comfort, your own body is the only North Star. Where Slumber Search discusses medical ailments, we strive to ensure the information on this site is accurate, current and useful, however, we do not warrant the accuracy or completeness of any information related to medicine. We are not doctors -- if you have a medical condition, please consult your doctor.

The makers of Slumber Search also make affiliate commissions from some of these manufacturers to keep the site running. There is NO additional price markup for using this site or on links from this site and any commissions made by Slumber Search come out of the brand's profit margin. See how it all works here.