Arabia’s Moomin mug "Sleep well" is part of the brand's tableware collection called True to its Origins, inspired by Tove Jansson’s novels Moominpappa at Sea (1965) and Moominvalley in November (1970). The first one tells the story of the Moomin family moving to a far-away lighthouse island, and the latter is the artist’s last Moomin book that she wrote after her mother had passed away. The themes of the books – longing, loneliness and turning points in life – are conveyed in the collection through Jansson’s beautiful, melancholy illustrations. First pieces of Arabia’s Moomin tableware came out already in the 1950s, and the large-scale production began in 1990. The form of the collection comes from Arabia’s timeless ceramic Teema tableware designed by Kaj Franck.