Historical clue formulations

• Bad bedfellows, say — 2014-05-08
• Causes of some domestic disturbances — 2005-09-02
• "Z" makers, in comics — 2004-03-09
• Camp awakeners — 1995-08-26
• Sound sleepers? — 1995-06-09
• Sleep disturbers — 1994-09-25
• Night rumblers — 1994-06-19