Hi bissonette,
The better options and possibilities I’m aware of in the Winnipeg area (subject to the guidelines here) are listed in post #2 here.
Post #21 here also includes a list of the better online manufacturers/retailers that ship mattresses across Canada that may also be well worth considering.
I deleted the previous reply because manufacturers or retailers aren’t allowed to promote their own mattresses on the forum (see the forum rules here) but MFC / Memory Foam Comfort is one of the options on the online list I linked.
Phoenix