Page last updated at 08:58 GMT, Tuesday, 24 June 2008 09:58 UK Having trouble sleeping? Yes, say many of you who responded to writer Lucy Kellaway's analysis of insomnia (see link, right). Here we list 10 of your favoured remedies. 1. Doing easy sudoku puzzles empties my brain of all the day's problems; for me, they must be easy so you have the satisfaction of finishing them correctly - nothing un