Replacement Liftex Memory foam insert for any of the BuddyRest Orthopedic Dog Beds. This high-quality foam is our BuddyRest Advanced Orthopedic Hybrid Support System. This foam is made of three layers: a high-quality BuddyRest Truecool™ Memory Foam top layer, our Liftex™ orthopedic mobility layer which is Talalay Latex Infused Memory Foam, and a PureCore™ Support Foam base layer. This is the latest innovation in foam technology and actually helps less mobile dogs get in and out of bed. Our foam is CertiPUR-US® approved, so you can be certain your pup is sleeping on the best option available.