How to choose an alarm clock
A good alarm clock wakes you reliably without keeping you awake at night.
Sound and sleep
Think about what wakes you and what keeps you up.
Ticking or silent
Silent sweep clocks do not tick.
Light sleepers
Choose a non-ticking sweep and a dim backlight.
Tip
Test the alarm tone when you unbox it.
Alarm tones
A bell is loud; a crescendo builds gently.
Heavy sleepers
A loud bell or a crescendo alarm suits deep sleepers.
Tip
Place the clock across the room.
Features
Extras that help.
Snooze and light
Snooze and a backlight are the most useful extras.
Travel
Compact travel clocks fold or have a cover.
Tip
Pack a spare battery.
Frequently asked questions
Do alarm clocks need batteries?
Most are battery powered. Check each product.
Are digital alarm clocks mains powered?
Some are. Check the listing.
What is crescendo?
An alarm that starts quietly and builds in volume.
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