Hi zman1.
A hybrid can be a great option. I would make sure you that the materials in any mattress you’re considering, Saatva or otherwise, match our Durability Guidelines relative to your BMI and is thick enough to give you comfort for your side sleeping position. in the comfort layer for your sleeping position.
There are also a number of forum posts and threads about mattresses and higher weights and a forum title search on heavy (you can just click this) will bring up many of them. Some examples include post #2 here and post #2 here and this thread.
Great to hear that you “may have sorted the hip pain”, and that it’s not a mattress associated pain after all. A mattress has to also match our preferences and I understand you can dislike it even though it isn’t causing you pain.
Let us know if you decide to continue your search for a mattress that is meeting both your needs and preferences or …if you chose to override your dislike for it. Just curious! 
Phoenix