Skimmer Captain Speaks Truth to Submariners

Do you think some U.S. submarine accidents may have been caused by pretending days are only 18 hours in length?  Back to 24-hour days. Duh!

Translated [my bold & underlined]
On board a submarine, "sleep is a luxury and stay[ing] awake is an honor." Yet respecting the circadian rhythm reduces crew fatigue, improving operational alertness and efficiency to reduce accidents.

More depth and background may be found in in A Sea Change in Standing Watch, (subscription required)

Proceedings Magazine - January 2013 Vol. 139/1/1,319 by Captain John Cordle, U.S. Navy, with Dr. Nita Shattuck.

Le Figaro (untranslated original text)
A bord d'un sous-marin, «dormir est un luxe et rester éveillé est un honneur», déplore le Capitaine John Cordle dans son article. Pourtant, respecter le rythme circadien pour diminuer l'état de fatigue de l'équipage permettrait d'améliorer leur vigilance et leur efficacité lors des opérations mais réduirait aussi les accidents. -  Capitaine John Cordle,  Le Figaro, 30/04/2014, Sous-marins : des conditions de vie extrêmes, . 

Should not a U.S. submarine force O-6 (or above) officer have made a similarly candid and published admission by now?  Admission of what, you may ask? Some of these accidents:

2001 USS Greeneville (SSN-772)
2002 USS Oklahoma City (SSN-723)
2003 USS Hartford (SSN-768) grounding (#1)
2005 USS San Francisco (SSN-711) with seamountain
2005 USS Philadelphia (SSN-690)
2007 USS Newport News (SSN-750)
2009 USS Hartford with USS New Orleans (#2)
2012 USS Montpelier (SSN-765)

Submarines are always silent and strange.