Mattress Natural Fillings Explained

Mattress Natural Fillings Explained

If you’ve been on the hunt for a new mattress – which you should be at least every seven years, according to experts – you’re probably wondering about what’s inside your mattress. Why does the type of filling seem to affect the cost? What are the differences between different types of filler material? Are there differences significant enough to affect my purchasing decisions?

As a matter of fact, the material your mattress is made from can actually have a huge impact on the quality of your sleep over an extended period of time. Read on to find out more about what mattress fillings are, different types of natural mattress fillings, and some of the benefits to using natural fillings over synthetic ones.

What Are Mattress Fillings? 

mattress natural materials and layers

In short, mattress fillings are the materials that fill the inside of your mattress. The type of filling may determine the longevity of your mattress, your level of sleep comfort, and even temperature regulation. There may be significant differences in mattress performance based on the type of filling used.

Additionally, different body types and sleeper types respond differently to varying materials. Sometimes mattresses are filled with “natural” fillings, which are typically made from animal hair, plant fibres, or a combination of different substances. At other times, they may be stuffed with synthetic fillings, which may include foam, gel, or synthetic latex.

Types of Natural Fillings

There are a few key types of natural fillings, each one offering its own unique sleeping experience.

Cotton and Wool

Cotton and wool fillings offer extended comfort and support, and are especially useful for temperature regulation. They may help to keep you cool in the summer, and warm in the winter while you sleep. They are a type of highly breathable material, and help to absorb moisture.

Tip: Check out our review of the Vispring mattress which is made in the UK using British Platinum Certified wool and cotton fillings. You can also see the Flaxby mattress collection, which uses Egyptian cotton and wool sourced from Yorkshire.

Silk, Cashmere and Mohair

Silk, cashmere, and mohair are some of the luxury natural fillings that you can find inside your mattress. They are often softer, finer, and more elegant than the other types, and are also often more durable. However, they are the more expensive.

Tip: Our recommendation for a cashmere mattress is the Cashmere 3000 Pocket Sprung Memory Foam Mattress, which has a layer of cashmere, memory foam and pocket springs.

Natural Latex

Mattresses that have a layer of natural latex inside, are considered the top of luxury and have a much higher price tag. Natural latex is made from the sap of rubber trees, and is very durable and considered an eco-friendly material. Usually mattresses that are made of latex last around 12 to 15 years, making them a good investment. This material also has naturally cooling properties, so are a preferred choice for those who usually sleep hot at night, and need a mattress that will cool them in the summer.

Tip: If you’re looking for a high rated and reasonably priced latex mattress, check out the Sealy Nostromo Posturepedic Pocket 1400 Latex Mattress, priced at £579.95 for a double size.

Finally, fillings made from bamboo and coconut fibres are the best at wicking away and absorbing moisture, ensuring your sleeping experience is cool and dry. They can also be found in many natural baby cot mattresses.

Benefits of Natural Filling

Purchasing a mattress with natural fillings has benefits over using one with a synthetic filling. First, mattresses with natural fillings typically provide year round temperature control. These types of filling can help to ensure that your winter nights are warm, and your summer nights are cool and not sweaty. They are better at absorbing moisture, leading to a cooler, drier sleep, and a longer-lasting mattress. 

They are typically hypoallergenic and help to reduce asthma that may come from your mattress. Natural fillings tend to do better than synthetic fillings in nearly every area.


To conclude, when shopping for a new mattress, you should pay attention to what’s inside. The type of filling in your mattress can make a huge difference as to your level of comfort while sleeping, as well as how long the mattress may last. 

Natural fillings tend to outperform synthetic fillings, and are more comfortable, provide better sleep temperature regulation, and last longer.