A hidden 70s- and 80s-inspired speakeasy beneath the Sloane Square Hotel: neon, red velvet and plush booths, Miami-club-era cocktails and vinyl DJs spinning disco and funk from Thursday to Saturday, with cocktails and Côte Brasserie food Monday to Wednesday. Find the black door and head down the red velvet stairs (hotel guests get lift access with a key from check-in). Private hire for up to 120, VIP section for 25.