Loosing? Learn the English language, people!

Guardian style guide has this to say, and I would agree:

**a or an before H? **

                                                                                                                                                                                                        Use an before a silent H: an heir, an hour, an honest  politician, an honorary consul; use a before an aspirated H: a hero, a  hotel, a historian (but don't change a direct quote if the speaker says,  for example, "an historic"). With abbreviations, be guided by  pronunciation: eg an LSE student                                                                                                                                                                                                                                                           

Also Eightball if you're thinking it should be dreamt, personally I think that's ridiculous, and the Guardian also agree:

dreamed
not dreamt