hypnagogic
/ˌhɪpnəˈgɒdʒɪk/(亦作hypnogogic)
adjective
- Psychology of or relating to the state immediately before falling asleep【心理】（与）睡前状态（有关）的。
词源
late 19th cent.: from French hypnagogique, from Greek hupnos 'sleep' + agōgos 'leading' （from agein 'to lead'）.