According to Osho, dozing during discourse can be a creative, positive process only when it arises from total, attentive listening—'yoga tandra,' a relaxed let‑go where the mind stops and a depth-to-depth communion happens; then don’t resist or feel guilty. But if sleepiness comes from boredom/inattention, or from poor nighttime rest, it’s unhelpful—stay alert or improve your sleep instead.
Yes, if you’re deeply tuned in and relaxed; no, if you’re bored or just tired—either wake up or sleep better at night.