The Bloomsbury branch of the long-established Chelsea VQ (formerly called 'Vingt-Quatre', as in '24'; geddit?) opened at the end of 2013 with the same USP – it's open all day, every day, so if you're in the West End and desperately need a chilli con carne at 5am, this is the place to come. The diner-style interior is hidden in a side street off Tottenham Court Road at the Centrepoint end, next door to the YMCA fitness club. The menu has few surprises: all-day (and night) breakfasts, omelettes, chicken caesar salad, steak, apple crumble and custard, and simply but attractively presented. There's also a small cocktail bar, though booze isn't served between 2am and 8am. Importantly, for a bar and diner that stays open after pub and bar closing times and has potential to become a magnet for the drunk, over-refreshed or infirm, how clean and accessible are the toilets? Spotlessly clean, with trip hazards helpfully marked with police-style hazard tape. Prices are a little high for this standard of cooking during normal mealtimes, but when it is the middle of the night and you're hungry (or indeed the middle of the afternoon), you don't begrudge the small premium paid.