Thomas Jefferson understood the appeal of alcove beds (see his iconic alcove bed at Monticello here); here's a roundup of some modern favorites.
Above: An alcove bed with built-in storage at the Moormann Berge in Germany.
Above: A sleeping nook looks outdoors at the Hotel Aire de Bardenas.
Above: A built-in bed in Minneapolis, via Dwell.
Above: A reading niche in Denmark, via KML Design.
Above: A bed alcove in the Hotel Hegia, via OWI.
Above: A minimal alcove bed via architect Francois Roche.
Above: A built-in reading niche by Piet Boon.
Above: A nook bed in a London apartment from Shoot Factory in the UK.
Above: A paneled alcove bed from House Call: Annabel's House in London.