Hi Sduffy,
Time for a new mattress and decision, decision, it just aint easy as they say.
Currently for reference, I am 6’ 220 and my wife is 5’4", 135, 66 and 63 respectively. Both are side sleepers that start on our back, so call it 80/20. We use a king mattress. I always like to reference this, and I am glad you did, as it is important.
I have slept on all of these. I previously had the BB Hybrid in my guestroom, my MIL had the DLX Premier Hybrid 14" Firm/Medium which I had tested, and I have slept on the S&F Estate and Cassatt Firm. My MIL preferred the firm side of the DLX. They did not have the 12" at that point. I have also tested everything that Sleepez has in their showroom as well as what Mattress Makers of San Diego have to offer. I have not slept on an all latex mattress other than testing them.
Sleeping on latex is definitely a different experience than sleeping on most other materials and foam mattresses. I have tested Hastens mattresses that use no foam, mainly cotton, wool and horsehair, and they are really super comfortable, it is quite a different experience than most anything you will come across. I can see why you were not successful with the Luxerion. Latex, as conforming, durable and long lasting as it is, can offer a different type of pushback that not everyone loves. That does not mean it is bad, it just has to work for you. I get a little of with with my 3" firm Talalay Topper, but so far, we remain comfortable with it.
I recently tested a Mattress Makers Cardiff, which is a latex hybrid, but it has an inch each of Serene and viscoelastic memory foam, along with wool in the cover panel. The feel and support were amazing, plus there was no pressure to the hips and shoulders. That was a really nice combination. I mention this because not all, hybrid or all latex mattresses will provide the same experience. Mattress Makers created the Cardiff knowing this and through sleeper feedback.
If you were finding the S&F appealing, the DLX will likely be your preference. I would tend to agree with their assessment of the medium, mainly because you have the ability to go up one level or down if necessary. Although, I doubt you would need to go down a level from the medium for either of you. You also get one shot at the apple when it comes to exchanging a comfort layer, so there is some flexibility there.
I don’t think the 12" would necessarily make things too firm for you compared to the 14". I would expect it to feel a touch more stable. I have not personally slept on the 12", so I would take that as an observation based on the construction rather than firsthand experience.
You could always opt for the split internal, which is what I did for my MIL. She never used the medium side, though. She started on the firm and remained with it until she passed. She was 5’3", 170 give or take, and in her 80s. She previously had a BeautyRest that failed within the first 14 months. She claimed that the DLX was the most comfortable bed she ever slept in.
The recommendations I have made to several friends that I thought would do well with the DLX Premier Hybrid Firm have all been successful, so far.
It is worth mentioning that when you understand there are three sections to your mattress, support, comfort and cover/panel, and all three play an important role in your comfort, it makes it easier to talk about firmness. People’s perception of firmness can vary quite a bit.
For example, I sleep on a BB Firm Plank Luxe- a very firm (but not hard surface mattress), currently with a 3" Sleepez firm Talalay topper. We don’t need the topper, but I wanted to test it, and we like it enough to keep it on the mattress. There is a longer story there for another time.
When a mattress has a great support system that does its job of supporting everything above it, a firm comfort section and cover panel become less critical in terms of needing to be super firm. That is what I liked about the Mattress Makers Cardiff, and what I like about the DLX Premier Hybrid. They are firm and supportive, but allow your body to contour and get pressure relief in the right areas. That is very different from what I would call a firm-hard style mattress.
I can sympathize with your aches and pains, which is why my tendency is to move a bit away from my Plank Luxe in the future to something with a similar firm support system, but with a comfort layer and/or panel cover that is a little more forgiving.
One other thing I would not overlook is your pillow. A lot of upper body aches and pains can be related to pillow choice, especially for side sleepers. I have 3 or 4 pillows out of my collection of close to 100 that I rotate regularly, with 2 or 3 available to sleep on at any given time. I will also use the one that isn’t under my head as a pseudo body pillow, so I can rest my side sleeping body against it and put my arm on top. It helps complete the comfort zone for me.
And finally, don’t overlook the foundation. It really is the unsung hero of the whole setup. A bad foundation can make a good mattress feel horrible. Make sure whatever you put the mattress on is very robust, rigid, supportive and has very little, preferably no, flex.
As for the GoodBed quiz, I wouldn’t put too much weight on it. It can be useful for narrowing things down, but you have already learned something far more valuable from your own experience. You know what latex feels like to you, you know what sinking feels like, and you know what you are trying to avoid. I would say the BB Signature Hybrid is a very nice mattress, it is comfortable mattress, but if you like the S&F you would more likely like the ThermoBalance Elite over the Signature Hybrid. The TBE has a more robust support system and has a zippered comfort layer so you can modify the comfort firmness at home rather than needing to return an entire mattress.
At 118 lbs, primarily sleeping on your side, with the hip and shoulder issues you described, I would be looking for enough surface comfort to relieve those pressure points without allowing your hips to sink enough to bother your back. That is the balance you should be aiming for.
If the S&F medium felt good to you but you were concerned about the sinking, I would spend more time thinking about whether you actually experienced excessive sinking or whether you were simply not accustomed to that much surface contouring. Those are two very different things. Which is why the DLX Premier Hybrid is a nice option, they use a higher density HD foam, which adds to the durability and longevity of the mattress, while still providing that familiar firm but forgiving feel.
Hopefully this gives you a little food for thought. I always like to say there isn’t just one mattress that is going to work for any individual or couple. Many times, slightly different firmness levels can work because it is really about the overall construction and the thoughtfulness that goes into how the mattress is built.
I guess what I am trying to say is, look less at how the mattress is labeled or characterized, firm or medium, and more at what is inside, how it is constructed, the densities and quality of the foams, and the robustness of the spring support.
All the best,
Maverick