Late night cafe wanted

Problem with London is that we don't have that much late night cafe/coffee place, most of them shut up shop by 8pm, do any of you know a good late night one that's open till like 11 or even 12? I know there's a handful in Brick Lane but I wanted to know if there's some in Soho/Bloomsbury/Covent garden area?

much appericated!

Well if you see a gap in the market, why not try to fill it. I'm sure an all night coffee bar around islington/hackney/city would do well. This forum would certainly give it a good plug if it was up to scratch. Give it a fixed/cycling related theme.