Abstract
PurposeAvoiding supine position can reduce snoring in most habitual snorers. However, devices that restrict the sleeping position cause discomfort or disrupt sleep resulting in low compliance. Therefore, mechanisms, which lift the trunk of the user without disturbing sleep, have been proposed. We present the first study, which investigates whether individual interventions provided by beds with lifting mechanisms are able to stop snoring (success rate) and whether they reduce the snoring index (number of total snores divided by total time in bed) using a repeated measures design. In addition, we investigated whether the intervention is interfering with the subjective sleep quality.MethodsTwenty-two subjects were observed for four nights (adaptation, baseline, and two intervention nights). During intervention nights, the bed lifted the trunk of the user in closed-loop manner. Subjects were divided in three groups (non-snorer, snorer one, and snorer two). Non-snorers were lifted by the bed at random time points during the night. In group snorer one, a stepwise increase of the bed inclination was compared with going directly to a randomly selected angle. In group snorer two, the influence of a small inclination angle (10 ∘) and a big inclination angle (20 ∘) was compared.ResultsSnoring was stopped successfully in 22% (small angle) and 67% (big angle) of the interventions. This did not lead to a significant reduction in the snoring index. The subjective sleep quality was not reduced by the intervention.ConclusionThe anti-snoring bed is able to stop individual episodes of habitual snoring without reducing the subjective sleep quality.Trial Registrationhttps://clinicaltrials.gov, no. NCT04053738, registered 12 August 2019 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04053738.
Highlights
Habitual snoring is a widespread sleep problem (Deary et al 2014), which does affect the health of the snorer (Endeshaw et al 2013) and the quality of life of the bed partner (Beninati et al 1999)
Snoring was stopped successfully in 22% and 67% of the interventions. This did not lead to a significant reduction in the snoring index
The anti-snoring bed is able to stop individual episodes of habitual snoring without reducing the subjective sleep quality
Summary
Habitual snoring is a widespread sleep problem (Deary et al 2014), which does affect the health of the snorer (Endeshaw et al 2013) and the quality of life of the bed partner (Beninati et al 1999). Intense snorers snore up to 245 times/hour (Cathcart et al 2010). Snoring often occurs when the muscle tone drops while the snorer is lying in supine position. In this position, gravitational forces pull the soft tissue surrounding the upper airways in dorsal direction, thereby narrowing the Therapeutic interventions force snorers to avoid supine position. The easiest way to implement positional therapy is to attach an obstacle, to the back of the snorer (Berger et al 1997). The discomfort needed to force the snorer to avoid supine position results in disrupted sleep and low user compliance (Bignold et al 2009)
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