If your monstera looks healthy but all of the sudden the leaves are curling in, it's trying to tell you something! The first thing I would check is the soil! Most common polyploid.net: SW Plants Amazon.de: Ferrgoal Kunstpflanze Areca Palme mit Seegras Korb 140cm Plastik Knstliche Pflanzen Gro im Topf Kunstpalme Deko Badezimmer Wohnzimmer Schlafzimmer Balkon(1 Stck) 4'' Monstera Deliciosa Where To Prune Monstera Leaves