hypnopedia

/ˌhɪpnoʊˈpiːdiə/
noun
  1. Learning or teaching while asleep, typically by playing recorded material.
    • He used a hypnopedia app to review vocabulary during sleep.
    • The effectiveness of hypnopedia is still debated by scientists.
    • Some people try hypnopedia to learn a new language overnight.
What does "hypnopedia" mean? | whatsthatwordmean | whatsthatwordmean