Thanks for the mention, @Gc123!
One thing I’d add is that there are a lot of variables that affect how a mattress feels beyond just coil type or ILD numbers. Coil height, wire gauge, coil diameter, number of turns, the comfort layers above the coils, foam thickness and density all play a role.
In our lineup, the main difference between our 12" and 14" hybrids is the support core. The 12" uses a 6" pocket coil, while the 14" uses an 8" pocket coil. That taller coil has a little more travel before it firms up, so it generally feels a bit more conforming and does a better job relieving pressure, especially for many side sleepers. The 12" is a little more supportive and is often preferred by heavier individuals or back and stomach sleepers or people who have a strong preference for a more supportive feel.
For @kkcc2026 specifically, I’d be hesitant to recommend our mattress based on what you’ve shared so far. For someone who finds the Stearns & Foster Lux Estate Plush Pillow Top not soft enough for pressure relief, I’d be concerned that our Premier Hybrid 14" in Soft may not be soft enough either.
It’s difficult to predict because there are still a lot of unknowns, but one thing that stands out is that every mattress you’ve tried from the Stearns & Foster Lux Estate Plush Pillow Top, Saatva Classic Medium, Saatva Classic Plush Soft, Saatva RX, Beautyrest Heavenly Bed equivalent, to iComfort Pro Level 2 Plush Pillow Top uses a spring support system.
Even at 120 lbs, as a side sleeper, it’s possible you’re compressing through the comfort layers enough that you’re feeling more of the support core and that may be contributing to your hip discomfort.
That doesn’t necessarily mean springs are the problem, but after trying this many hybrids, I’d start wondering whether the common denominator is worth exploring. A very thick mattress, something 18" or more with a substantial comfort system, might reduce how much you interact with the springs.
One other thought that might be worth considering is trying a mattress without a spring support core altogether. Since every mattress you’ve tried uses coils, it may help determine whether that’s the common denominator.
I probably wouldn’t recommend an all-latex mattress by itself. Latex is very resilient and buoyant, and while many people love that feel, someone who already isn’t getting enough pressure relief may find it too “pushy” even in a softer firmness.
Instead, I’d be more inclined to look at a latex support core with a softer foam comfort layer or a quality foam topper above it. That combination gives you the durability and support of latex while allowing the foam to provide more pressure relief at the surface.
It may be worth reaching out to a member of the Mattress Underground like @Sleep_EZ . They have quite a bit of experience with customizable latex mattresses and may be able to point you in the right direction. If you go that route, I’d lean toward something at least 13" thick rather than one of the 10" models. The additional thickness reduces the likelihood of compressing through the comfort layers and “bottoming out,” especially as a side sleeper given the discomfort on the previous mattresses. If needed, you could then add a quality foam topper to fine-tune the pressure relief.
I can’t say with confidence that’s the answer, but after trying this many coil mattresses, I do think it’s a reasonable path to explore if you haven’t already.