What is the difference between types of foam in pet beds

Chopped Memory Foam - This is the next step up from fiber fill as an economical blend of ground up foam and memory foam are mixed to create a chopped foam mix. The reason a mix is required is that memory foam is far too sticky and therefore would clump together if not mixed with traditional foam. A very firm mattress type of effect can be achieved by using chopped foam, especially when used in conjunction with a chambered or baffled style liner. Typically, not recommended for machine washing as foam absorbs water causing the foam to clump and lengthy dry times.