Sleeplessness; inability to sleep or insomnia; wakefulness or difficulty sleeping.
最近ストレスで不眠が続いている。
Lately I've been suffering from insomnia due to stress.
不眠の症状がひどければ専門医に相談したほうがいい。
If your insomnia symptoms are severe, you should consult a specialist.
夜中に何度も目が覚めて不眠気味だ。
I wake up several times during the night and tend to have trouble sleeping.