Good Morning DiamondDistinct,
Welcome to the Mattress UnderGround and thanks for your question.
This post has a lot of information that translate to you, as this person was a lighter sleeper and was having difficulty finding a combination that did not weight on her pressure points. Of course everyone’s situation is different with it’s own nuances.
It’s interesting that you didn’t find the Saatva comfortable. I spent almost an entire day testing every Saatva model in their Winter Park, Florida showroom, after visiting their New Jersey showroom watching them being made. As someone who prefers a firmer mattress, I found the Saatva HD and to some degree the Rx to be the most supportive and comfortable, as it didn’t allow my body to sink in. Of course, that’s just my experience.
My wife, who also dislikes “squishy” mattresses, felt that every other Saatva model was too soft or too bouncy. She’s 5’4" and 135 lbs, and I’m 6’ and 220 lbs, so our body types differ as well. While your experience, and others’ will naturally vary, I wanted to offer another perspective.
Back to your situation. I’m really glad you offered your perspective because what you’re describing makes a lot of sense. At your height and weight, and as a side and back sleeper, a mattress that feels “supportive” to most people can be genuinely painful for you. The shoulder and hip pain you’re having on the Saatva is exactly what I’d expect from something that firm (for someone your height and weight) and the fact that memory foam helped your pain but trapped heat is a critical clue, not a contradiction. It says your body needs pressure relief and surface softness, just not the kind that turns into a hot lava quicksand or makes you feel stuck.
Latex is tricky here, and your hesitation is reasonable. While latex is generally cooler and more breathable than memory foam, it still has a lot of pushback, especially for someone as light as you. That pushback can feel supportive at first but slowly aggravate shoulders and low back over time, which lines up with your Tuft and Needle experience. If you did go with something like
@Sleep_EZ , you would likely need plush Talalay on top and probably through the comfort layers, and even then there’s a real chance it still feels too firm unless it’s configured very carefully. This is why many lightweight side sleepers struggle with all-latex setups even when they are high quality and organic.
What is interesting is that the mattress you remember sleeping best on is an older pillowtop. That usually means coils for airflow and stability, with a softer, forgiving surface that lets your shoulders sink in without collapsing your spine. A well made hybrid with coils and breathable comfort layers tends to sleep cooler than foam, relieve pressure better than latex alone, and feel much closer to that classic pillowtop comfort without the chemical smell you are sensitive to.
For someone with sleep apnea and heat issues, that airflow can also make a noticeable difference in sleep quality, not just comfort. As suggested in the other thread, possibly a down or feather topper may be something that hits the spot regardless of what mattress you place it on. It should be noted that a topper is not some random mattress accessory. It is a vital component as a holistic approach to mattress construction. Some of the worlds finest mattresses actually build their mattress system around the topper they use. So a topper should not be underestimated as a viable part of your mattress system. Plus, you would not want something as soft and plush as a feather or down topper as a built in comfort layer of your mattress. That might lead to mattresses that may develop sags, body depressions, and discomfort where a replacement of an entire mattress becomes necessary, whereas a topper is a less expensive and cumbersome option.
I know this whole process is exhausting, especially when you’re in pain and trying to manage CPAP at the same time. You’re not failing at mattress shopping, you’ve just been offered options that don’t match your body or sleep needs. When it comes to all natural, chemical free, that does not mean you need to incorporate latex at all. The @EngineeredSleep Duo Lift, uses no foams at all. Remember, latex is known to sleep cooler than most memory foams, but all foams retain heat to a certain degree. Trusted members like @Sleep_EZ and @Arizona_Premium have the ability to custom craft a hybrid with combinations of talalay, wool and spring support that can focus on your pressure points.
Also, you don’t necessarily have to go fully “all-natural” to reduce toxin exposure. Some manufacturers use CertiPUR-US®–certified foams, which are tested to ensure very low VOC emissions and exclude certain harmful chemicals. That said, “all-natural” materials are exactly that made from natural inputs rather than synthetic ones.
You are correct in seeking a robust wooden frame/foundation. The foundation, along with everything else below you body and the ground, are critical to evaluating what will work in keeping your body in alignment, and calculating what can be modified to satisfy all your comfort needs. I like wool or horsehair to create a heat neutral barrier. Of course natural fibers tend to be more expensive, so you may need to make a tradeoff at some point. Natural fibers offer more longevity than most any of their synthetic counter parts.
Speaking with the folks at @MattressFoundations can offer some insight on a very robust foundation and their new bunkie is another option for an appropriate support component for a mattress system. Folks like @EthicalMattress offer a line of toxin free mattresses, so a conversation with them may be worthwhile.
You deserve to sleep without hurting, and it’s very reasonable to expect that from a mattress.
Hopefully this places you on the right path going forward.
At TMU there is a host of Trusted Members who are always willing to provide guidance, even when offering information on products they do not carry. So feel free to ask follow up questions.
Maverick