A recent analysis suggests that the way people wake up in the morning could be doing more harm than good, with certain alarm tones potentially making it harder for the brain to transition from sleep to full alertness. The findings point to a growing focus on how sound design influences sleep quality and morning wellbeing, an issue many modern users may overlook in their daily routines.
The study by audiovisual agency Startle examined 140 smartphone alarm tones and found that more than half of the default iPhone options could contribute to a harsher wake-up experience. Researchers noted that abrupt, high-pitched sounds may trigger unnecessary stress responses in the body, highlighting a broader concern about how technology interacts with human biology.
Sleep experts explain that this groggy state is known as sleep inertia, which can last anywhere from a few minutes to over an hour depending on sleep quality and timing. Psychologist and Panda London sleep specialist Ritz Birah noted that sudden alarms can push the body into a “fight or flight” response, increasing heart rate, blood pressure and cortisol levels even before the day properly begins.
Experts also point out that consistent sleep disruption is a common issue in fast-paced lifestyles, where irregular rest and harsh wake-up methods can compound fatigue over time. When this becomes routine, individuals may find it increasingly difficult to feel fully alert in the morning, affecting mood, productivity and overall mental clarity.
In contrast, smoother alarm tones with melodic structure are said to support a more natural waking process. According to the study, the ideal alarm features a singable melody, around 500 hertz frequency, and a tempo between 100 and 120 beats per minute, which helps the brain transition more gently from sleep to wakefulness.
Based on these criteria, Startle identified “Sencha” as the best iPhone alarm tone, followed by “By the Seaside,” “Steps” and “Uplift,” all of which share similar calming audio characteristics. For Samsung devices, “Synth Bell” and “Roller Disco” were highlighted as better options due to their musical structure and moderate tempo.
The report also suggests that sunrise alarm clocks may offer an even more natural alternative, as gradual light exposure helps regulate the body’s internal clock by suppressing melatonin. Health specialists further recommend pairing improved alarm choices with simple morning habits, such as opening curtains, drinking water or taking a few deep breaths, to ease the transition from sleep to wakefulness.
