Hi diamondshopper,
Tufting is done with a cord or tape that goes right through all the layers of a mattress (or a topper) at regular intervals and precompresses and holds all the layers and materials together and prevents shifting and is secured or anchored on either side (often with some kind of padded button or felt washer) and gives the product the unique tufted look (see here).
Latex/wool toppers usually have the wool quilted to a fabric cover and It’s uncommon to see a latex/wool topper that is tufted although there are a few. Some searching came up with …
https://www.suitesleep.com/suite-vesta-natural-wool-latex-combo-topper/ Their retail store finder is here.
Also sold under Sueno and Oyasumi. Their retail store finder is here.
ADMIN NOTE:Removed 404 page link | Archived Footprint 1: new.sleeptek.ca/product-categories/classic-toppers| Archived Footprint 2:new.sleeptek.ca/dealer-listing
http://www.greensleep.ca/produits/accessories/mattress-top-2 Their retail store finder is here.
https://www.naturepedic.com/our-products/pads-toppers/toppers/overture-organic-luxury-latex-pillowtop Their retail store finder is here.
If you are a little more adventurous then Our Manufacturer Memberships :: The Mattress Underground has all the supplies you would need (and can give you some good guidance) to make your own latex/wool hand tufted topper.
I would keep in mind that mattress warranties only cover defects (which usually show up early in the life of a mattress or topper) and not the gradual softening (or “virtual” impressions) and loss of comfort and support over time which is the biggest reason that you would need to replace a mattress or a topper so a warranty has little to do with the useful life of a mattress or topper. I certainly wouldn’t expect any mattress or topper to last for 30 years.
While there is no way to specifically quantify how long any mattress (or topper) will last for a specific person or predict exactly when they will decide to replace it because it is no longer suitable or comfortable for them (because this is the only real measure of durability or the useful life of a mattress that really matters) and because there are too many unknowns and variables involved that are unique to each person … if a mattress (or topper) is well inside a suitable comfort/support range and isn’t close to the edge of being too soft when it is new (see post #2 here) and you have confirmed that it meets the minimum quality/durability specs that are suggested in the guidelines here then it would be reasonable to expect a useful lifetime in the range of 7 - 10 years (and probably a little less with a separate topper) and with higher quality and more durable materials like latex or higher density memory foam or polyfoam (in the comfort layers especially) it would likely be in the higher end of the range or even longer and the chances that you would have additional “bonus time” would be higher as well.
Phoenix