alarm clock
目覚まし時計
Delayed sleep phase syndrome
Digital clock
Knocker-up
Light therapy
Teasmade
Timer
Wake-up call
/suto3/google.iconalarm clock
/suto3/Google画像検索.iconalarm clock
/suto3/Google定義検索.icon alarm clock
/suto3/wikipedia.iconalarm clock
/suto3/weblio.icon alarm clock
/suto3/kotobank.icon alarm clock
/suto3/jisho.icon alarm clock