I prefer a soft mattress and bought a Charles P Roger’s Lifetime 9 a couple years ago when I was significantly heavier (~385#) I’m now at 220# and would like to replace the cassette with a new softer topper. I’m thinking of getting a 2” soft and 2” medium Talalay topper to get to 4” total, but I’m seemingly right on the border of the body weight not recommended for soft latex and I see mostly recommendations for 3” rather than 2/2. What would be the best path to plushier than the Lifetime 9 with a topper that is roughly equal feel to what 385 felt like on the original?
When folks want plush, they should look into PU/memory foam with low ILD 12 to 18.
Hey BigJ.
Welcome to our Mattress Forum 
and congratulations on that incredibly hard work.
The mechanics of your bed have completely shifted along with your body composition. At 385 lbs, your body exerted enough force to easily compress the mattress, making even firm materials feel plush. Now at 220 lbs, you don’t have that same gravitational mass to push past the surface, which is why a bed that used to feel like a cloud now feels rigid.
At your current weight, a soft Talalay latex layer is completely fine. The warning against soft latex applies to heavier profiles because they sink right through it and “bottom out,” but since you are rebuilding the interior cassette of a Charles P. Rogers Lifetime 9, you already have a heavy-duty pocketed coil unit handling the deep support.
Your idea of stacking a 2" Soft (around 19 ILD) over a 2" Medium (around 28 ILD) is actually a great game plane for an internal cassette. While a single 3" soft layer is the standard recommendation to keep a sleeper from hitting a hard surface, a 2"/2" split creates a progressive transition. The top 2" provides the initial plush “hug” your shoulders and hips are missing, while the 2" medium layer acts as a gentle buffer before you reach the firm mattress core. This creates the deep, cradling depth you used to feel.
Just double-check the exact height of your original cassette to make sure a full 4" stack fits comfortably within the zippered enclosure. Stick with Talalay for that top piece, and you should get that buoyant, floating sensation right back.
NikkiTMU
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