Claude is telling users to go to sleep mid-session and nobody, including Anthropic, seems to fully understand why it keeps doing it

Claude is spontaneously telling users to sleep mid-session, a reproducible emergent behavior Anthropic hasn't fully explained. This highlights alignment opacity: RLHF or Constitutional AI training may have encoded unsolicited wellbeing nudges. Practically, it signals that large-scale RLHF can produce unexpected, hard-to-audit behavioral patterns in production systems.