Hi Roberto,
Unfortunately, I don’t have the capacity to act a personal mattress concierge and I don’t keep a record of the individual mattresses or their specs that the retailers and manufacturers in the hundreds of forum lists throughout the forum carry on their floor or have available online or in certain geographic regions, as it would be a bigger job than anyone could keep up with in a constantly changing market.
However, subject to first confirming that any retailer or manufacturer on the list that you wish to visit is completely transparent ( see this article) and to making sure that any mattress you are considering meets the quality/value guidelines here … some options or possibilities I’m aware of in and around Toronto are listed here. When researching any stores in your area, use the guidelines I’ve posted in my previous reply to evaluate the quality of any memory foam offerings you’re considering.
If you do decide to venture online, I would consider using the expertise of the members listed in post #21 here who are all very experienced and knowledgeable and specialize in providing the type of help and guidance on the phone that can help you make good choices. There are a wide range of latex options included in the choices there and I believe that all of them compete well with the best in the industry in terms of their quality, value, service, and transparency. There is also a list of online mattress sources for Canadians in post #21 here.
Phoenix