It can be difficult to choose a mattress when it’s time to replace your bedding. Indeed, given the multitude of models and brands available on the market, switching to a new mattress to ensure a good night’s sleep isn’t as simple as it seems. Spring mattresses, foam mattresses, natural latex mattresses, or memory foam mattresses—the wide variety of products should encourage consumers to consider the most important factors when it comes to sleep.
To help you along the way, we suggest taking stock of the factors to consider before buying your new mattress. Lifespan, composition, firmness, and other specific features—let’s explore together how to choose the bedding that best suits your needs.
Choosing a Mattress Based on the Sleeper's Weight
Among the important factors you should consider before buying a new mattress, your weight—just like your height—is a key factor. Indeed, a sleeper weighing 60 kilograms does not have the same needs as someone weighing more than 100 kilograms, if only in terms of firmness and support.
Generally speaking, mattresses are classified into three different categories. You can choose from:
- a soft mattress, ideal for sleepers weighing less than 60 kilos;
- a firm mattress, recommended for sleepers weighing between 60 and 85 kilos;
- A very firm mattress, best suited for sleepers weighing more than 90 kilos.
Traditionally, it’s also important to distinguish between the different types of mattresses and their materials to understand why certain ones may not be suitable for your weight. For example, it’s important to know that foam mattresses (polyurethane, memory foam, etc.) are primarily designed for lighter individuals. Conversely, innerspring mattresses are undoubtedly the most recommended option for heavier individuals, as are pocket-coil mattresses. Finally, to suit all situations, only latex mattresses stand out, since they support all weight ranges—provided you choose the right density.
Choosing a Mattress Based on Density
When discussing mattress density, it is important not to confuse this information with the mattress’s thickness. These two aspects are quite distinct from one another—so much so that a thick mattress may not have a high density, and vice versa. This metric, measured inkg/m³, indicates the number of kilograms of foam per cubic meter of mattress. Thus, a density of 45kg/m³ means that the mattress contains 45 kilograms of foam per cubic meter.
As you can see, mattress density is a key factor that you need to understand, especially when considering your weight, as we discussed above. So, what density should you choose for your new mattress?
Mattress density for people weighing less than 70 kilograms
If you weigh less than 70 kilograms, it’s generally considered that your mattress can have a lower density. Therefore, a soft, plush mattress with a density between 30 and 45kg/m³ should work perfectly well. Below this threshold—and although there are few models in this range—your mattress could deteriorate very quickly and need to be replaced soon. Conversely, above 45kg/m³, your body could experience severe pain and inadequate support for your body type.
The mattress density ranges from 80 to 95 kilograms
For obvious reasons related to back support, sleepers weighing between 80 and 95 kilograms are advised to choose higher-density mattresses. This includes, for example, models with densities ranging from 65 to 75kg/m³, which offer sufficient comfort and a good balance between durability and a restful night’s sleep.
Mattress density for people weighing over 100 kilos
Finally, for people weighing more than 100 kilos, proper support is strongly recommended. If this applies to you, keep in mind that the lower a mattress’s density, the greater the potential for health problems—starting with significantly impaired sleep. To avoid this situation, in addition to a high-quality box spring, it’s best to choose a high-end mattress with a density of more than 75kg/m³.
Choosing a Mattress Based on Its Composition
When replacing a mattress, it’s obviously important to understand the composition of the various models available on the market. Indeed, mattresses can be made of either synthetic or natural materials. Beyond personal preferences, this is a crucial consideration in terms of durability, since the lifespan of your mattress will vary depending on the choice you make.
From polyester foam to polyurethane foam to viscoelastic foam, synthetic mattresses are undoubtedly the best-selling product when it comes to bedding. However, their lifespan is much shorter than that of natural-fiber mattresses, as it is estimated that they need to be replaced approximately every 7 to 10 years.
On the contrary, a mattress made from natural materials is more likely to last over time, as is the case with natural latex. Although it is not chemically treated, this type of product is highly resistant to bacteria and other parasites, partly because of its tropical origins. Highly hygienic, the natural latex mattress is considered one of the best products on the market, but also one of the most expensive, although it’s important to consider its density as well. In terms of durability, it’s estimated that a natural latex mattress can last more than 15 years—and potentially even longer if properly maintained.
Choosing a Mattress for Longevity
Depending on your personal situation, you should also consider another important factor: the mattress’s ability to provide independent support. In addition to the weight of the sleepers, a couple should keep in mind that the mattress must adapt to each person’s body type and sleeping habits.
So, if your partner tends to move around a lot at night—especially when rolling over in bed—it’s best if you don’t feel even the slightest of their movements on your side of the mattress. This ability to dampen sensations depends in part on the mattress material and its composition, since the best products in this regard are undoubtedly pocket-coil mattresses. The reason for this advantage is simple and lies in the anatomical support provided by this technology, particularly for the back. Because the springs are individually wrapped, they do not transmit any movement, allowing sleepers to rest in the best possible conditions.
Unlike pocket-spring mattresses, models made of polyurethane foam or synthetic latex are much less effective in this regard.
We recommend these other pages:
- What size mattress should you choose?
- Mattress Comparison
- How to Choose the Firmness of a Mattress
- How to Choose a Mattress for Back Pain
- Which children's mattress should you choose?
- Which mattress brand should you choose?
- What size mattress should you choose?
- How to Choose a Natural Mattress?
- How to Choose an Organic Latex Mattress?
- Which baby mattress should you choose?