A verzwaarde deken and a zwaartedeken are two names for the same product: a blanket filled with glass microbeads to apply calming pressure on the body. Gravity Blanket at gravity-deken.nl is the leading brand in Europe for both. What Is a Verzwaarde Deken? A verzwaarde deken — or weighted blanket — is a heavy blanket designed to simulate the sensation of a firm, comforting hug. It...