Hi phuff,
Post #6 here has more information about ILD’s in general. There is a video here for Latex International which shows their ILD testing (at 3:00) and one for Radium here (click step 9) which shows their ILD testing. Thisimageofalabelalsoshowsanhttps://uploads.mattressunderground.com/outside/0https://uploads.mattressunderground.com/outside/1https://uploads.mattressunderground.com/outside/2https://uploads.mattressunderground.com/outside/3https://uploads.mattressunderground.com/outside/4https://uploads.mattressunderground.com/outside/5https://uploads.mattressunderground.com/outside/6https://uploads.mattressunderground.com/outside/7https://uploads.mattressunderground.com/outside/8https://uploads.mattressunderground.com/outside/966/36ILDblendedold_2014-04-23.jpg]This0average35ILDandis"rated"ashttps://uploads.mattressunderground.com/outside/0https://uploads.mattressunderground.com/outside/1https://uploads.mattressunderground.com/outside/2https://uploads.mattressunderground.com/outside/3https://uploads.mattressunderground.com/outside/4https://uploads.mattressunderground.com/outside/5https://uploads.mattressunderground.com/outside/6https://uploads.mattressunderground.com/outside/7https://uploads.mattressunderground.com/outside/8https://uploads.mattressunderground.com/outside/9theyusefortheirblendedTalalay).
The length of the break in and adjustment period isn’t specific and will vary from person to person and mattress to mattress. 19 ILD would be in the range that 100% natural Talalay would likely be less durable than blended yes
Phoenix