REMS
Set to 11 different clues across 17 published puzzles, most often “Radiation units” — The New York Times, Monday, 12 January 2009.
4 letters
Every clue on record, most used first
- Radiation units5 times
The New York Times — Monday, 12 January 2009
- Sleep phenomena3 times
The New York Times — Sunday, 3 January 1999
- Signs of dreamingonce
The New York Times — Sunday, 28 November 2010
- Phenomena after retiringonce
The New York Times — Friday, 9 April 2010
- Bedtime phenomenaonce
The New York Times — Thursday, 21 January 2010
- Sleep activitiesonce
The New York Times — Friday, 30 January 2004
- Radiation measuresonce
The New York Times — Tuesday, 19 August 2003
- Radiation dosagesonce
The New York Times — Sunday, 24 March 2002
- X-ray measurementsonce
The New York Times — Tuesday, 26 December 1995
- Dream statesonce
The New York Times — Saturday, 13 August 1994
- Dream stagesonce
The New York Times — Sunday, 6 March 1994