• shutters keeps passers by from peering in and still allow light the room to flood.They have been known to retain heat in a room.Plantation shutters are one of the most flexible window dressings on the market, and have the edge over curtains and blinds for many reasons.They are known to help improve sleep. By completely closing the slats, shutters minimise light pollution in the room, offering you undisturbed sleep through the day and night, making them a popular choice for nurseries and bedrooms.They offer privacy without compromising light. Unlike curtains or roman blinds that you must completely draw back to allow light through and stripping the room of its privacy, shutters give the best of both worlds. By simply tilting the slats.