Do relaxing words promote deep sleep?

Takeaway

  • A non-pharmacological intervention that involves a presentation of relaxing words during sleep can extend sleep depth and improve sleep quality.

Why this matters

  • The amount of deep sleep or slow-wave sleep (SWS), which is important for both physical and mental health, can be modulated by neurophysiological and cognitive processes.

  • In this study, the researchers shed light on the effect of cognitive processes on SWS and provide evidence to guide future non-pharmacological interventions targeted at promoting sleep depth and quality.