ichidan verb, intransitive verb
jump out of bed; spring to one's feet
Describes a sudden, energetic rising from a lying or sitting position, often in response to a sound, alarm, or surprise.
目覚ましが鳴ると、彼は飛び起きた。
When the alarm went off, he jumped out of bed.
大きな物音に驚いて飛び起き
Startled by a loud noise, I sprang to my feet.