隣の部屋の騒音で安眠を妨げられた。
My sleep was disturbed by the noise from the next room.
新しい枕に替えてから、毎晩安眠できるようになった。
Since I switched to a new pillow, I've been able to sleep soundly every night.
心配事が多くて、ここ数日は安眠できていない。
I have so much on my mind that I haven't slept well for the past few days.