Bad dreams in the night
If Lady Bracknell has one failing, it is a wearying propensity for having entire nights' repose disturbed by nightmares of the most distressing kind.
She was woken innumerable times last night by feverish dreams in which she conducted the most vituperative and unpleasant arguments with close friends: friends with whom she has absolutely no axe to grind in the waking world.
As a result, she feels positively wretched today.
Young Bertram Bracknell, on the other hand, has clearly mastered the skill of relaxed and dreamless sleep. No nightmares plague his subconscious mind.