How do your favorites stack up? Study reveals the best and worst iPhone wake-up alarms — with Apple’s default radar on the list
- Research has shown that our choice of alarm affects our ‘sleep inactivity’.
- Sleep inactivity is the feeling of dizziness and disorientation after waking up
- Alarms that have a strong tone, are not very fast and are in the C5 key to reduce this
- So the best default alarm clock on iPhone is “Sencha”, and the worst is “Chimes”
As it gets darker in the morning as we approach winter, many Brits may find it hard to wake up.
Research has shown that our choice of alarm affects our “sleep inactivity” — feeling dizzy, disoriented and tired immediately upon awakening.
Now, music analysts at wince Revealed the best and worst iPhone wake-up alarms.
Their findings indicate that the happy song “Sencha” is a better choice thanks to its specific melody being in the C key and having an average speed of 110 beats per minute.
However, Apple’s default alarm, “Radar,” is one of the worst options, according to experts.
Research has shown that our choice of alarm affects ‘sleep inactivity’ – feeling dizzy, disoriented and tired immediately upon awakening (stored image)
a Study 2020 From RMIT University in Australia, she identified melody qualities that would nullify the symptoms of sleep insufficiency.
This includes having a tone that can be sung or played, with a rate of between 100 and 120 beats per minute, a C5 key and a dominant frequency of 500 Hz.
Researchers from Startle have categorized 28 default iPhone alarm tones based on the criterion from this study.
Their findings suggest that ‘By the Seaside’ and ‘Uplift’ should provide a nice start to the day, with a lower risk of unpleasant insomnia.
On the other hand, the worst iPhone alarms are “Presto,” “Radar,” “Beacon,” “Signal,” and “Chimes,” all of which promote sleep lethargy because they lack melody and produce short, sharp bursts of noise.
They also have frequencies up to four times what experts recommend.
The reason why our alarms affect how we feel when we wake up has to do with how they work.
Luke Cousins, Regional Officer of Physiology at Nuffield Health explained: “The awakening process is controlled by the Retinal Activation System (RAS).

Studies have found that harsh beeps and klaxons contribute to morning grogginess (stored image)
This restricts how your body responds to external stimuli during sleep and how it transitions into wakefulness.
An alarm clock is designed to stimulate the RAS, telling your body to wake up.
The jolt of an alarm clock can be especially powerful if you’re in a deep sleep phase, leaving you with an increased heart rate and feeling dizzy in the morning that can last for several hours.
It’s also hard to wake up during the winter because our brains produce melatonin – a hormone that makes you tired – in response to darkness.
This enhances sleep inactivity, but is also influenced by other factors such as genes, lifestyle and sleep quality.
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