Hi teelobrown,
You’re welcome!
Koosh is just their name for polyfoam. There is also more about so called “soy foams” in post #2 here . It certainly isn’t a “natural” material. If you can find out the information listed here about all the layers and materials in any of their mattresses and post them on the forum then I’d certainly be happy to make some comments about the quality and durability of the materials and the mattress as a whole.
Dreamstar is one of the smaller independent manufacturers in the Toronto area that make some good quality/value mattresses. The mattress you linked shows 5lb. for the memory foam layer, which is a good density, but they don’t list the density of the polyfoam core. You’ll want to find that out.
They may “sound good” but you need to review again the durability guidelines I linked to in my earlier reply and you’d see that all of the memory foam mattresses you linked to use lower-density 3 lb. memory foam, which I would not recommend.
The mattress you linked to uses 4 lb. memory foam, latex, and 2 lb. and 3 lb. polyfoam – all better quality materials. The only caution I would issue would be for the upper memory foam layer, which may be a little lower than you’d want for someone in the higher BMI ranges.
There are three different models in this lineup, are no lower quality materials or weak links in these mattresses for those that are in more average weight ranges although I would add a caution for those that are in higher weight range.
Both Memory Foam Comfort and Nest Bedding are a members of this site which means that I think very highly of them and that I believe that they compete well with the best in the industry in terms of their quality, value, service, knowledge, and transparency.
Regardless of the thickness or firmness of any of the comfort or support layers … the only way to know whether any mattress is a good match for you in terms of PPP will be based on your own careful testing or personal experience. If your careful testing indicates that the mattress is a good “match” for you in terms of PPP then knowing the firmness or thickness of any of the individual layers (whether they are comfort or support layers) really doesn’t make any difference. Unless you’re extremely knowledgeable about mattresses and their construction, “theory at a distance” is very difficult (it’s even difficult for “experts” within the industry). Phone conversations with the vendors you’re considering will certainly be a great start to confirm the quality of all of the components within the mattress, and that can help you to narrow down your choice of stores to visit.
Once you are down to a list of finalists and you are confident that they would all be a good match for you in terms of PPP (or you have good options after a purchase if you aren’t) and that there are no lower quality materials or weak links in any of them in terms of durability then you would be down to finalists that are comparing “good to good”. If there are no clear winners between them at this point (which is usually a good indication that you have done some very good research) then you are in the fortunate position that any of them would likely make a good quality/value choice and ( post #2 here ) can help you make a final choice based on your local testing or mattresses you have slept well on, your more detailed conversations with each of them, your confidence about PPP and the suitability of each one, their prices, your preferences, the options you have after a purchase to fine tune the mattress or exchange or return the mattress or individual layers, any additional extras that are part of each purchase, and on “informed best judgement” based on all the other objective, subjective, and intangible parts of your personal value equation that are most important to you. Sometimes a final choice may even come down to very minor differences or can sometimes just be a matter of “gut feel” or “educated best judgement”.
Good luck in your search – you’ve got a good start!
Phoenix