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Science · Neuroscience · published 2026-08-26 · via New Scientist

Sneezing during sleep: readers debunk common belief

Several readers report that they do sneeze while asleep, often waking them instantly, contradicting the premise of the question. One reader notes that cats can sneeze without waking, suggesting that sneezing during sleep may be more common than assumed. The responses indicate that awareness of such sneezes depends on whether they disrupt sleep.

Expanded Detail

The reader responses challenge a long-held assumption about sleep physiology, offering anecdotal evidence that sneezing can occur during slumber. One respondent reports sneezing regularly about 10 to 15 minutes after falling asleep, with the reflex immediately rousing them, followed by a quick return to rest. Another reader notes that during hay fever season, sneezes wake them, proving the sneeze originated while asleep.

The observations extend to pets, with one reader noting cats can sneeze without waking, suggesting the reflex may not always disrupt sleep. This implies awareness of sleep-sneezing depends entirely on whether the sneeze crosses the threshold of consciousness. If it doesn't wake the sleeper, they simply have no memory of it, making the phenomenon potentially far more common than previously believed.

Context

This discussion could reshape public understanding of sleep physiology, as many people may assume their sleep is uninterrupted by such reflexes. Readers who experience sleep-sneezing may find validation, while those who don't may gain awareness of a phenomenon they simply never notice. The anecdotal nature of the evidence may encourage further scientific inquiry into how the brain processes sensory stimuli during different sleep stages, potentially informing future research on sleep disorders and reflex suppression.

Expanded detail and Context are AI-generated analysis; the linked article remains the authoritative source.
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This summary is Al-enhanced to contain extended analysis and broader social context. The original is {NAME); the linked article is the authoritative source. Original headline: “Why don’t we sneeze when we are asleep?.” Browse more stories.