You have tried the tea, the magnesium, the no-screens rule and the white-noise app, and still you lie there at midnight doing mental arithmetic about how many hours are left. Here is something most sleep advice skips: the type of exercise you do during the day may matter more than any of it. A major review of clinical trials, published last year and still one of the most-cited pieces of sleep research around, compared seven different forms of exercise head to head for people with insomnia. One of them came out on top for sleep time by a remarkable margin. And it is not the one that leaves you exhausted.
The study that compared exercise head to head
Most research on exercise and sleep tests one activity at a time, which makes it hard to know which to choose. A team of researchers in China took a different approach. They gathered every randomized clinical trial on the subject they could find up to April 2025, 22 in total involving 1,348 people, and used a statistical technique called a network meta-analysis to compare 13 different insomnia treatments at once. Seven were exercise-based: yoga, tai chi, walking or jogging, aerobic plus strength training, strength training alone, aerobic exercise combined with therapy, and mixed aerobic workouts. The results were published in BMJ Evidence-Based Medicine in July 2025.
The winner: yoga
For total sleep time, one form of exercise stood clearly apart. Two to six sessions of yoga a week, each lasting 45 to 60 minutes, over one to four months, increased total sleep by nearly two hours a night and cut the time spent awake after falling asleep by about an hour. According to the researchers, yoga may also improve sleep efficiency, the share of time in bed actually spent asleep, by nearly 15 percent, and shorten the time it takes to fall asleep by around half an hour.
Two other gentle practices also performed strongly. Tai chi added more than 50 minutes of sleep a night and reduced night-time waking by over half an hour. And walking or jogging produced the largest drop in insomnia severity scores of any exercise, nearly ten points, which the researchers considered clinically significant. If you have already started walking every day, in other words, your sleep is likely already thanking you.
Why the gentlest exercises win
The finding runs against a common assumption: that the best way to sleep well is to wear yourself out. The top three were all low-intensity, low-impact forms of movement, and two of them, yoga and tai chi, combine gentle movement with slow, mindful breathing. Harvard Health noted that the calming effects of yoga may help relieve the anxiety and low mood that so often keep people awake. Researchers also point to better body awareness and a quieter nervous system at bedtime. A punishing evening workout, by contrast, can leave the body too wound up to settle.
The study’s authors made a broader point, too: given how cheap, accessible and free of side effects these practices are, they are well suited to becoming a first-line option for poor sleep. Sleep specialists quoted about the research were a little more cautious, describing exercise as a compelling complement to established treatments such as cognitive behavioral therapy for insomnia, rather than a replacement for them.
How to try it tonight
You do not need a studio membership. The trials used regular sessions over weeks, so consistency matters more than intensity: two to three sessions a week is a realistic place to start. Choose slow, restorative styles, such as hatha, yin or restorative yoga, rather than hot or power classes. Simple poses like child’s pose, legs up the wall and a gentle seated forward fold, held for several slow breaths, are easy to do at home in the evening. And keep the lights low and the phone in another room while you practice; the point is to signal to the body that the day is ending.
If you often wake in the small hours rather than struggling to fall asleep, it is worth reading about what sleep doctors say that pattern usually means, since the fix can be different.
The takeaway
Of all the forms of exercise tested, yoga did the most for sleep time, adding nearly two hours a night in the trials reviewed, with tai chi and walking close behind for other measures. The common thread is gentleness. The workout most likely to help you sleep is not the one that leaves you drained, but the one that slows you down.
If you have persistent insomnia, talk to a doctor. Exercise can help, but ongoing sleep problems deserve proper assessment.
