Free tool · Wellness timers
Meditation timer with interval bells
Short answer
Pick a length from 3 to 60 minutes and, if you like, a soft bell every few minutes. A 2014 meta-analysis of 47 trials and 3,515 people found moderate evidence that meditation programs improve anxiety, depression and pain, with small effects, and low or insufficient evidence for positive mood, attention, sleep and weight.
Last reviewed 28 October 20261 published sourcesNot medical advice
Reps keeps track of this for you on iPhone, iPad and Apple Watch.
Get Reps freeMeditation timer
Pick a length and, if you like, a soft bell at regular intervals. Turn sound on to hear the bells; the timer shows them either way.
Bells at 5 min, then an end bell.
Ready: 10 minutes
10:00
Next bell in 5:00
Runs entirely in your browser. Nothing is saved or sent anywhere, and sound stays off unless you turn it on.
| Outcome | Strength of evidence | Effect size |
|---|---|---|
| Anxiety | Moderate | 0.38 at 8 weeks; 0.22 at 3–6 months |
| Depression | Moderate | 0.30 at 8 weeks; 0.23 at 3–6 months |
| Pain | Moderate | 0.33 |
| Stress or distress | Low | Improved |
| Mental-health quality of life | Low | Improved |
| Positive mood, attention, sleep, weight | Low or insufficient | No effect shown |
What the evidence says
Goyal and colleagues reviewed 47 randomized trials with 3,515 participants (Goyal et al., 2014). They found moderate evidence that meditation programs improve anxiety (effect size 0.38 at 8 weeks), depression (0.30) and pain (0.33), and low evidence that they improve stress and mental-health quality of life. Evidence was low or insufficient for positive mood, attention, substance use, eating habits, sleep and weight.
Those effect sizes are small, and the review found no evidence that meditation programs did better than other active treatments such as exercise or medication (Goyal et al., 2014). A timer can help you keep a regular practice; it cannot promise a particular result.
Using the timer
Pick a length and an interval bell, then press Start. The big number counts down the whole sit and the line under it shows the time to the next bell. Bells only sound if you turn sound on, and the timer keeps time from the clock so it stays accurate when the screen is in the background.
For a shorter, structured practice, try the box breathing timer. If evening sits are part of winding down, plan the rest of the night with the sleep calculator.
Follow your recovery, not just your sits
Reps reads the HRV your Apple Watch already records and turns it into readable trends you can compare with your recovery and training.
Free to download · iPhone, iPad and Apple Watch
Common questions
Does meditation work?
Goyal and colleagues' 2014 meta-analysis found moderate evidence that meditation programs improve anxiety (effect size 0.38 at 8 weeks), depression (0.30) and pain (0.33), and low evidence for stress and mental-health quality of life. It found no evidence that meditation beat other active treatments such as exercise.
How long should I meditate?
The meta-analysis looked at structured programs, not a single ideal sitting length, so there is no proven minimum. Choose a length you can keep up and adjust from there.
What are interval bells for?
A soft bell every few minutes marks time without checking a clock. Turn sound on to hear them; the timer also counts down to the next bell on screen.
Sources
Figures on this page were checked against these publications on 28 October 2026.
- Goyal M, Singh S, Sibinga EM, Gould NF, Rowland-Seymour A, Sharma R, et al. Meditation programs for psychological stress and well-being: a systematic review and meta-analysis. JAMA Internal Medicine. 2014;174(3):357–368. doi.org/10.1001/jamainternmed.2013.13018
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