Hi LuckEnuff,
Hopefully you have already read this but just in case the first post of this thread is the best place to start with your mattress research.
It depends on the type of foam in the mattress and how well it conforms to the adjustable. Latex for example is much more elastic and “bendable” than polyfoam so a thicker latex mattress would be more conforming then the same thickness of polyfoam. As long as it comforms well then it would be fine (and the manufacturer or retailer will tell you if it’s suitable for an adjustable). More than about 12" or so may not conform as well.
You are certainly right that quality has generally gone down in the mainstream part of the industry.
There are many smaller local or regional manufacturers that are sold factory direct or through better sleep shops that still make two sided mattresses and these types of manufacturers are usually the best quality and value as well. it’s really only the mainstream brands that stopped making them (and as you probably know I would avoid these anyway).
If you let me know your city or zip I’d be happy to let you know of any options I’m aware of that are close to you.
They have different designs, different combinations of materials, and different options for customizing both before and after a purchase. The Bamboo Bliss has a single latex layer, the Aloe Alexis has two latex layers, and the Total latex Mattress is all latex (support core and comfort layer). You can read a little more about a latex hybrid vs an all latex mattress in post #2 here. Latex is a much higher quality and higher performance material than polyfoam.
The total price of a mattress is not a meaningful way to make comparisons. The only way to make meaningful comparisons is to know the details of all the layers and components in each mattress you are considering so you can make apples to apples comparisons based on the quality of the materials inside each mattress. The Sleep Lab mattress doesn’t list any of the details about what is inside it (type, quality, and thickness of all the layers) and you would need to find this out to compare them to any other mattresses.
Beyond the first few years (when manufacturing defects which is what warranties cover) a warranty is not nearly as important as knowing the quality/durability of the materials inside your mattress. Post #174 here has more about mattress warranties.Don’t forget that warranties don’t cover the loss of comfort and support that goes with the softening of the materials in your mattress (which is not a manufacturing defect) which is the main reason you would need to replace your mattress. Warranties have little to do with how long a mattress will last.
This could be a support issue but it’s more likely to be a pressure relief issue (the comfort layers have probably softened and are no longer providing the pressure relief you need).
It’s generally not a good idea to choose a mattress based on your subjective memory of another mattress and your own more objective testing using a common set of criteria is usually much more effective (see post #4 here). Like major brand mattresses (The Westin is made by Simmons) … hotel mattresses are usually made of relatively cheap materials and are not a good “target” for a mattress either in terms of quality or value. Even low quality materials like lower density polyfoam can feel good for a while (you can’t feel the quality of a mattress) … they just don’t last nearly as long as higher quality materials. &They also don’t provide any meaningful information about what is in their mattresses. You can read more about hotel mattresses at the end of post #2 here and the links to other posts about hotel mattresses it includes.
Your best odds of finding the “best” mattress for you would be to start with reading the basic information, steps, and guidelines in the first post of this thread and then follow the steps and guidelines one by one.
Phoenix