36 to 37sq m | Views over Cadogan Place Gardens or the hotel’s own garden | Designer Nicola Harding has used lively hues; throwback photographs, playbills and posters; and distinctive vintage pieces (velvet cocktail chairs, rotary phones, bar carts, marquetry cabinets and more) | Royal Opera House has a palette of greens and pinks, the Old Vic has a canopied bed and is dressed in pastel hues with flashes of emerald, the Adelphi has a canopy bed and cornflower-blue walls, the Garrick is sage green with a canopied bed, the Savoy is aquamarine with an elaborate pencil-post bed, and the Haymarket’s bed has a huge arched headboard | Sitting area | Super-king-size bed (some can be twinned on request) | Bathroom with a bath tub and walk-in shower, and underfloor heating | Flatscreen TV with Chromecast, Roberts radio, minibar filled with free soft drinks and locally sourced treats, Nespresso coffee machine with Cru Kafe capsules, Kitchen Aid kettle and selection of East India Company teas, desk, bathrobes and slippers, air-conditioning, Bamford bath products and free WiFi