Hi Krim1,
The Natura Celebrity is approximately 8" thick and is an all-Talalay latex mattress, using a cotton knit smooth top with wool backing. The bottom 6" core is approximately 35 ILD, and the top 2" is 26-32 ILD. I believe this Talalay was from Radium, and it was blended. That should help you as you do some research either locally or online.
The better options or possibilities I’m aware of in and around the Ottawa area (subject to making sure that any mattress you are considering meets the quality/value guidelines here ) are listed in posts #2 and #3 here . I have a list here for North Bay and Sudbury. I know these towns are a bit of a drive from your home, but that’s what I have found that is closest to your home.
Phoenix