Hi cardiacmommy,
I’m not sure which model of the Pure Latex Bliss you tried (they have many models that are very different from each other) but their toppers are about 14 - 15 ILD and are much softer than the Savvy Rest topper (which is probably why it felt more “flimsy” to you). It also doesn’t have a wool quilted cover which can also make a significant difference in how it feels. There is more about the effects of a wool quilted cover vs a thinner more stretchy knit cover in post #6 here. The wool quilting doesn’t add more “strength” but along with the different firmness levels of the latex it certainly can change the “feel” of the latex inside the cover.
I would keep in mind that Tempurpedic is price controlled so if the mattress was being sold at a significant discount compared to the Tempurpedic site then it’s possible that it’s a used or returned mattress and may not have a warranty. I would make sure that they are an authorized Tempurpedic dealer before you purchase it.
The same would be true for the Reverie mattress. The Reverie Dream system has a soft, medium, and a firm configuration that would all be different from each other and can be rearranged after a purchase. You can see some comments about their mattress in post #2 here and the specs of their mattresses are in post #6 here.
I would agree that having two soft layers on top of a mattress would be more risky both in terms of durability (softer layers are less durable than firmer layers) and possibly in terms of your sleeping posture and alignment as well. If you try their recommendations then if it’s still too firm you can always exchange a medium for a soft layer but I would tend to follow their recommendations first because they will tend to suggest what their experience tells them you need rather than what you may think you need. This would be especially true if you were testing mattresses based on “showroom feel” rather than using the testing guidelines in the tutorial post.
There is also more about latex vs memory foam in post #2 here but they are very different from each other and the choice between different types of materials or mattresses is always a preference choice that only you can decide.
I would be very cautious about buying anything where you feel “pressured” to buy (no matter how nice the salespeople may be) and I would tend to be very cautious with these types of stores that are selling something that sounds too good to be true … because it usually isn’t. Good quality/value mattresses are available every day of the year and a mattress purchase that is based on being influenced by sales techniques or a “deal” that gives you a “sense of loss” or “missing out” if you don’t “jump on it” will too easily lead to a very poor choice or to choosing a mattress for all the wrong reasons and is one of the most frequent reasons for buyers remorse.
Your sleep is too important to buy a mattress from a salesperson that is more interested in their profit than in helping to educate you about which mattress is really the best “match” for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) and all the other parts of your personal value equation that are most important to you.
Phoenix