If you’re looking to buy a mattress, I don’t need to tell you the research process is complex. To assist with that, we have a whole guide that lays out (no pun intended … OK, partially intended) where to begin. But for now, I’m going to walk through the various types of mattress materials. My hope is that by the time you finish reading this, you’ll have a better idea of what kind of mattress you’re looking for, which will make your final decision that much easier.
To put your mind at ease, let me walk you through my credentials: I’m a certified Sleep Science coach and mattress tester of over five years. I can dissect a mattress blueprint faster than pouring your morning cup of coffee, I’ve perfected my unboxing form (because mattresses are heavy), and I can recite the manufacturing process of major mattress materials at any given moment. It’s a fun party trick, but it makes me what I like to think of as the final boss of mattress testing. My teammates also know their stuff (we sleep on mattresses we test for a week or more, then report back on our findings), which helped us compile this list of the best mattresses of 2025.
So, back to picking a type of mattress: Despite the popularity of mattresses in a box and the image they project in our heads, it’s so much more than a rectangular piece of foam you sleep on. There are four main types of mattresses: innerspring, hybrid, memory foam, and latex. To help me explain these materials even more, I asked John Merwin, CEO of 3Z Brands (parent company of Helix, Birch, Bear, Nolah, and Leesa) and founder of Brooklyn Bedding, to weigh in as well.
Innerspring
Truth be told, this is more of a history lesson than a type of mattress you want to shop for (unless you really love this kind of mattress; to each their own). “Traditional” innerspring mattresses are the firm-feeling beds you probably have early memories of, given that the makeup is just innerspring coils wrapped in a cover. It’s just as squeaky as you probably remember, too, as the coil type used involves connecting each and every coil to work as one unit.
These are Bonnell coils, and they connect both laterally and vertically. All to say, when you lie down and your weight is pressed into the mattress, all those coils act as “one for all and all for one” and simultaneously compress down. It’s not going to work wonders for pressure relief like modern hybrids will, but it is highly responsive, which means it’ll pop back into its original shape as you move around. So if you’re a sleeper who moves around between sleeping positions, coils are a good feature to have, so you’re getting near-instantaneous support.
Why aren’t traditional coils in the works with mattresses nowadays? According to Merwin, upgraded pocketed coils far outperform traditional ones.
“Unlike traditional coils that are wired together and move as a unit, pocketed coils are encased individually, which allows each coil to respond independently to movement and pressure,” he said. “This design minimizes motion transfer, so when one person moves or gets out of bed, their partner feels far less disruption. It also provides more targeted support, contouring to the body in a way that improves spinal alignment and overall comfort.” While you can still find innerspring mattresses with traditional coils out there, they’re typically getting phased out in favor of hybrids. Truth be told, I’ve only tested less than a handful of them over the years. If you’re dead set on this mattress type, all power to you, and have fun on your personal mattress treasure hunt.
Hybrid
Traditional coil mattresses have evolved into hybrids, which is what you will likely encounter on today’s mattress market (aside from latex and foam options). Hybrid mattresses are highly customizable, allowing you to pick and choose what you want in your bed, whether that’s a combination of foam and coils, latex and coils, or even a mix of the three. Many mattress reviews will use the phrase “best of both worlds” to describe hybrids, as this mattress lets you sample the design aspects of the materials involved. You can get the pressure relief you need from memory foam or latex on top, but ample support from the coil core (not to mention the aforementioned responsiveness from coil inclusion).
Courtesy of Nolah
Speaking of coils and harking back to traditional mattress design, the type of coil used in hybrid mattresses matters too, as it improves upon the design of the Bonnell coil. The keywords to look for are “pocketed coils” or “individually wrapped coils,” which make up the main support mechanism of a mattress. Instead of being interconnected, each coil stays in its own lane (pocket, really) and will compress uninhibited by the other coils around it. In other words, where there is more weight, the bed will feel firmer.
This is especially applicable for areas where body weight is centralized when you’re lying down, particularly around the hips and shoulders. Pocketed coils are also meant to outperform traditional ones in the motion isolation arena, meaning that when you move around, the individual coil takes the heat motion-wise and stops the bed from reenacting a small earthquake. With the interconnectivity of traditional coils, it doesn’t take much for the feeling of movement to travel along the entire surface of the bed.