Scruffs Hilton Chocolate Memory Foam Orthopaedic Dog Mattress. Scruffs Hilton mattress was the first product in Scruffs MEMORY series of orthopaedic pet beds, designed predominantly for larger breeds, or pets that require more support for their joints, back or body. The beds are filled with crumb memory foam; these dense particles mould to the shape of the pet to achieve the ultimate level of support.