Possible Clues:

• Belied? Just not up to it
• Told fibs about a German bishop offering to remain undercover taking a rest
• Ignore the alarm, perhaps
• What people rarely do with shoes on
• Prone to be just not up to it
• One is so prone to be just not up to it
• You're just not up doing anything
• One is just not up to do this
• Don't get up early
• Prone not to be up to it