How you sleep, not just how long can be the difference between restful slumber and a night of restless shallow breathing.When you lie flat on your back, gravity does its worst: the tongue and soft tissues drift backwards, obstructing your airway and intensifying apneic episodes. Side sleeping, however, offers a natural advantage by keeping airways more open and stable. https://luxemattresses.co.uk/is-your-mattress-worsening-your-sleep-apnea/