alarm clock

And when I didn’t reply he sent an alarm clock emoji and told me: 'Time’s running out.'

Opinions from sleep experts vary on the use of alarm clocks.

The ding-ding sound of the first tram of the day rattling down streets was the alarm clock many in Kolkata woke up to.

Neither my husband nor I was required to act as human alarm clocks, ticking down the minutes before “we really have to leave.”

Prizes included "space age" alarm clocks, a two-way intercom set, and for first prize winners, a "futuristic radio".