The single King size: from single bed to comfortable and large double bed. Gabriel Duo “Isola” is one of the seven models of the Gabriel Duo family. It can be an elegant sofa bed for the guest room or a single bed for the children's room, yet is designed to accompany even the nights of a couple. In fact, with a very simple movement, the bed on wheels that is hidden in the base can be extracted and brought to the same height as the main mattress. Until 2018 the product was marketed under the brand Orizzonti Italia.