“…A total of 495 potentially relevant tracheostomy studies were screened for relevance, 47 articles were downloaded for detailed evaluation, and 2 were added after reviewing references, for a total of 49 full‐text articles obtained 6,12,13,116–161 . After detailed evaluation, it was determined that 31 articles did not report polysomnographic or quantitative sleepiness data, and these were excluded from meta‐analysis.…”