Difficulty in sleeping (8)
I believe the answer is:
insomnia
(Other definitions for insomnia that I've seen before include "State of chronic sleeplessness" , "Habitual sleeplessness" , "Sleep disorder" , "problem at night" , "Wakefulness" .)
I believe the answer is:
insomnia
(Other definitions for insomnia that I've seen before include "State of chronic sleeplessness" , "Habitual sleeplessness" , "Sleep disorder" , "problem at night" , "Wakefulness" .)