With life’s busy schedule, keeping track of time without a clock is challenging. We’re so dependent on this device that even when we go to sleep, we need an alarm clock to remind us to wake up. Not ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more No one likes getting up in the morning — unless you're an early bird — but a good alarm clock makes waking ...

Using a melodic song you enjoy as an alarm sound can potentially reduce feelings of grogginess upon waking. However, waking suddenly from sleep may have negative effects. Many people use an alarm ...

If you're a very heavy sleeper, you already know a regular alarm clock usually doesn't get the job done, and phone alerts or easygoing sunrise alarms don't rouse those who are deep in an REM cycle, ...