Does PCOS cause sleep problems?

Sleep disturbances are more common in women with PCOS than in women without it, including trouble falling asleep and trouble staying asleep, and they can occur even in women at a normal weight. That's the backdrop this study was designed around: all 24 participants already had poor sleep scores before anything began.

What kind of exercise is best for sleep with PCOS?

This trial tested strength training specifically, which matters because most previous PCOS exercise research has focused on aerobic exercise. The strengthening program here was simple bodyweight work done three times a week, and it improved overall sleep scores compared to a control group. That doesn't prove strength beats cardio; it means strength has evidence of its own now.

How long does it take for exercise to improve sleep?

In this study, four weeks was enough to show a measurable improvement in the overall sleep score. The researchers also noted that four weeks is likely too short to see the full effect, and that longer programs may produce more improvement across more aspects of sleep.

Can exercise help PCOS fatigue and low energy?

This study didn't measure daytime energy directly, but it did measure sleep, which sits underneath it. After four weeks of strengthening exercises, the women's overall sleep scores improved significantly compared to the control group, moving from the moderate-to-severe range toward better sleep. Worth being straight with you: the specific score for daytime dysfunction did not improve significantly here. So this is evidence that exercise may improve how you sleep, which may in turn help how you feel, rather than proof it fixes PCOS fatigue on its own.

Do I need a gym or equipment to try this?

No. Every movement in this program used your own bodyweight or a chair: squats, modified push-ups, side lunges, bridging, calf raises, chair sit-ups, lateral raises, side bends, and cat-camel. The sessions in the study were supervised by a physiotherapist, so if you have an injury or a condition that affects exercise, talk to your doctor or a physical therapist before starting.

The PCOS Brief · July 14, 2026

Can strength training help you sleep better with PCOS? A randomized trial of 24 women found 4 weeks of bodyweight exercises improved sleep scores

A randomized controlled trial of 24 women with PCOS and poor sleep: strengthening exercises three times a week for four weeks improved the global Pittsburgh Sleep Quality Index score from 12.9 to 9.5 versus control.

By Alishah Khan, MPH (Columbia University) · Co-founder, Sachi Health Last reviewed July 14, 2026

A muted editorial cover: 'Strength training & sleep' — a randomized controlled trial of 24 women with PCOS finding four weeks of bodyweight strengthening exercises improved sleep quality scores. Clay-blue, sage, and cream palette with a crescent-and-orbit motif.

The short version

Twenty-four women with PCOS, all of them sleeping badly, were randomly split into two groups. One group did strengthening exercises three times a week for four weeks: squats, modified push-ups, lunges, bridges, and a handful of other bodyweight moves. The other group did nothing but a warm-up and some stretching. After four weeks, the exercise group's overall sleep score improved by 3.4 points on a standard 21-point scale, and that improvement was significantly better than the control group's. It's a small, short study, but sleep is one of the most under-discussed parts of living with PCOS, and this is real evidence that something you can do at home may move it.

The numbers that matter

−3.4 points of improvement in the overall sleep score (PSQI) after 4 weeks, from 12.9 to 9.5

3× exercise sessions per week, for just 4 weeks total

24 women, randomized 1 to 1, with zero dropouts

Can we actually trust this?

Partly, and the honest answer takes a minute. The good news first: this was a genuine randomized controlled trial, which is the design that lets you say a change was caused by the intervention rather than by time, expectation, or chance. Participants were randomly assigned by computer, allocation was concealed in sealed opaque envelopes, participants were blinded, and every single woman completed the study. Those are real strengths, and they put this a step above the many PCOS exercise studies that have no control group at all. The authors also reported no external funding and no conflicts of interest.

Now the caution. The study was small (24 women), short (4 weeks with no follow-up afterward), and sleep was measured by questionnaire rather than in a sleep lab, so it captures how women felt they slept. Most importantly, when the researchers compared the two groups head to head, only two measures came out clearly ahead: the overall sleep score and the use of sleep medication. The individual pieces (how quickly women fell asleep, how efficiently they slept) improved a lot within the exercise group, but not by enough to beat the control group outright. The authors are upfront that a four-week protocol is probably too short, and that longer programs are needed. So read this as an encouraging first signal, not a settled case.

Does this apply to you?

This trial is most relevant if:

You have PCOS and struggle with sleep: trouble falling asleep, staying asleep, or waking unrested
You have a BMI in the normal to overweight range (participants were 18.5 to 29.9)
You're not currently doing regular exercise (women already active were excluded from this study)
You want something you can do at home without equipment or a gym membership

We want to be honest about the edges of this one. All 24 participants were recruited at a single physiotherapy institute in Ambala, India, and every session was supervised by a physiotherapist, which is part of why nobody dropped out and nobody got hurt. Doing this alone at home is not quite the same experiment. And because women who already exercised regularly were screened out, this tells us what happens when a sedentary starting point changes, not whether adding strength work on top of an existing routine would do the same.

Why this matters

Sleep is the PCOS symptom nobody warns you about. It doesn't make the diagnostic criteria, it rarely comes up in the appointment, and yet poor sleep quietly makes everything else harder: the fatigue, the cravings, the mood, the sheer energy it takes to manage a condition that already asks a lot of you. Women with PCOS have more trouble sleeping than women without it, and it's easy to write that off as just how things are now.

What's hopeful here is the size of the lever. These women weren't training for anything. They did about half an hour of basic bodyweight movements, three times a week, for one month, and they slept meaningfully better. It also adds to a pattern we've covered before: in an earlier issue, eight weeks of combined strength and cardio training was linked to lower testosterone and better insulin resistance in women with PCOS, without any weight loss at all. The through-line is that exercise appears to do useful things in PCOS that have nothing to do with the number on the scale. If you've been treating your exhaustion as an unfixable background condition, this is a reason to test that assumption.

If you want to try this

Start with three sessions a week.
That was the whole frequency in this study. Not daily, not two-a-days. Three.
Use bodyweight moves you already know.
The program was squats, modified push-ups, side lunges, bridging, calf raises, chair sit-ups, lateral raises, side bends, and gentle spinal movements (cat and camel). No equipment required.
Build up slowly.
Participants did 1 set per exercise in week 1, 2 sets in week 2, and 3 sets in weeks 3 and 4, at 10 to 15 reps, with rest between sets. The ramp is part of the design.
Bookend it.
Every session started with marching in place to warm up and ended with stretching the big muscle groups.
Give it a month before you judge it.
The improvement showed up at four weeks. And since the researchers suspect four weeks is on the short side, staying with it longer may do more, not less.
Check with your doctor first if you have any injury or condition that affects exercise.
This was a supervised program, which is part of why everyone completed it safely.

FAQ

Does PCOS cause sleep problems?: Sleep disturbances are more common in women with PCOS than in women without it, including trouble falling asleep and trouble staying asleep, and they can occur even in women at a normal weight. That's the backdrop this study was designed around: all 24 participants already had poor sleep scores before anything began.
What kind of exercise is best for sleep with PCOS?: This trial tested strength training specifically, which matters because most previous PCOS exercise research has focused on aerobic exercise. The strengthening program here was simple bodyweight work done three times a week, and it improved overall sleep scores compared to a control group. That doesn't prove strength beats cardio; it means strength has evidence of its own now.
How long does it take for exercise to improve sleep?: In this study, four weeks was enough to show a measurable improvement in the overall sleep score. The researchers also noted that four weeks is likely too short to see the full effect, and that longer programs may produce more improvement across more aspects of sleep.
Can exercise help PCOS fatigue and low energy?: This study didn't measure daytime energy directly, but it did measure sleep, which sits underneath it. After four weeks of strengthening exercises, the women's overall sleep scores improved significantly compared to the control group, moving from the moderate-to-severe range toward better sleep. Worth being straight with you: the specific score for daytime dysfunction did not improve significantly here. So this is evidence that exercise may improve how you sleep, which may in turn help how you feel, rather than proof it fixes PCOS fatigue on its own.
Do I need a gym or equipment to try this?: No. Every movement in this program used your own bodyweight or a chair: squats, modified push-ups, side lunges, bridging, calf raises, chair sit-ups, lateral raises, side bends, and cat-camel. The sessions in the study were supervised by a physiotherapist, so if you have an injury or a condition that affects exercise, talk to your doctor or a physical therapist before starting.

How Sachi can help

This is exactly the kind of study Sachi is built to turn into something you can actually run. The program here is specific: three sessions a week, a defined list of bodyweight exercises, a set progression that builds across four weeks. That's a protocol, not a vague suggestion, and it comes pre-loaded in Sachi as a goal you can pick up rather than something you have to piece together and log by hand.

The other half is knowing whether it's working. Because Sachi connects to your phone's health data, your sleep can be tracked alongside the exercise you're doing, so you can see your own version of what this study measured: whether the weeks you keep up the sessions are the weeks you sleep better. Some of this is live today and some is still in progress.

Study at a glance

Title: Effect of Strengthening Exercises on Sleep Quality among Females Suffering from Polycystic Ovarian Syndrome: A Randomized Controlled Trial
Authors: Bashir S, Goyal K, Goyal M, Vaish H
Journal: Journal of Mid-life Health, 2023
Volume: 14(3); 224-229
DOI: 10.4103/jmh.jmh_123_23
PMC ID: PMC10836433
Design: Randomized controlled trial, 1:1 allocation, computer-generated randomization with concealed allocation (sequentially numbered, opaque, sealed envelopes), participants blinded, no dropouts
Setting: Maharishi Markandeshwar Institute of Physiotherapy and Rehabilitation, Ambala, Haryana, India (supervised sessions; no external funding, no declared conflicts)
Sample: 24 women with PCOS (12 exercise, 12 control), ages 20 to 45, BMI 18.5 to 29.9, PSQI ≥5 at baseline
Follow-up: None beyond the 4-week endpoint
Intervention: Strengthening exercises 3×/week for 4 weeks, progressive sets (1 → 3), 10 to 15 reps, bodyweight movements; control received spot marching and stretching only

Reference

Bashir S, Goyal K, Goyal M, Vaish H (2023). Effect of Strengthening Exercises on Sleep Quality among Females Suffering from Polycystic Ovarian Syndrome: A Randomized Controlled Trial. Journal of Mid-life Health , 14(3), 224-229. https://doi.org/10.4103/jmh.jmh_123_23

Cite this issue

Sachi Health. (July 14, 2026). Can strength training help you sleep better with PCOS? A randomized trial of 24 women found 4 weeks of bodyweight exercises improved sleep scores. The PCOS Brief. https://www.sachi-health.com/blog/the-pcos-brief-issue-21