Hi Josephine,
The material is called Talalay GL slow response (there is also a Talalay GL fast response) which is a slow response version of latex that has gel added to it. Latex International is no longer making it so you would need to find somewhere that still has stock available.
There are four places I now of that it may still be available until stock runs out. They are …
- https://www.mattresses.net/
- Custom Design & Manufacturing of Latex Foam Products - Hamden, Connecticut
- https://sleeplikeabear.com/
- A retailer that still has some Pure Latex Bliss Talalay GL slow response toppers left. You can use the retail store finder on the Pure Latex Bliss site here to see if any stores in your area (or in any area) still have some available. There are also some PLB retailers listed in post #32 here that sell online that may also have some available.
Phoenix