Gentle Rocking Beds May Improve Sleep for People With Insomnia

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A gently moving bed may sound unusual, but new sleep research suggests that slow, steady rocking could help some people who struggle with insomnia symptoms. In a small laboratory study, 16 young adults with objectively poor sleep spent one night on a stationary bed and another night on a bed that moved slowly from side to side throughout the night. The rocking was continuous and very gentle, with a complete movement cycle taking about four seconds. Compared with the stationary night, participants spent less time awake during the night and less time in the lightest stage of sleep. Their overall sleep efficiency improved, and they also rated the rocking night as better sleep. Brain recordings showed that the movement was synchronized with sleep-related brain rhythms, including slow oscillations and sleep spindles. These findings fit with earlier research suggesting that rhythmic movement can influence the brain during sleep. The results are promising, but they are not proof that rocking beds are a treatment for insomnia. The study was small, involved young adults, and tested only a single rocking night for each participant. The rocking also did not make people fall asleep faster overall, and it did not improve performance on the morning memory test. Responses to movement may also differ between people, particularly for those who find physical motion distracting. Larger and longer studies are needed to determine whether the effect lasts over time and whether rocking could eventually complement established approaches to insomnia.