Sleep is one of the few recovery variables you can change without a prescription, so it is worth being precise about what is known. What is well documented is how sleep is structured and how little of it Americans report getting: roughly 1 in 3 adults in the U.S. say they do not get enough sleep each day, according to statistics compiled by the National Council on Aging.1 What is not established by the sources cited on this page is a direct, measured link between a given night’s sleep and the rate at which connective tissue repairs.
That distinction matters. At Regen.MD we treat sleep as a modifiable part of your recovery plan and as something we ask about at evaluation, not as a treatment claim we can put a number on.
Key takeaways
- Sleep runs in repeating cycles across the night, so a broken night is structurally different from a short one.
- Insufficient sleep, daytime napping, and insomnia symptoms are all common in adults, and more common with age.
- No source cited here quantifies how sleep changes connective tissue repair, and we do not claim one.
- Sleep still belongs in the plan, because it affects how much rehabilitation and activity you can tolerate.
- Entry at Regen.MD is a paid, physician-led Clinical Evaluation, and sleep is part of what we review. See how Regen.MD builds a plan.
What a night of sleep actually looks like
The stages repeat in cycles, not once
Sleep is described in four stages that together make up one full cycle. Each full sleep cycle lasts an average of 80 to 100 minutes before starting over.1 This is why a night that is frequently interrupted is not simply a shorter version of a good night.
How many cycles a normal night contains
In a night that reaches the commonly recommended 7 to 9 hours, an adult goes through roughly 4 to 6 sleep cycles.1 Contrary to a common belief, older adults are not thought to need less sleep than younger adults; the same 7 to 9 hour range is what is generally recommended.1
What is documented about sleep in older adults
Daytime naps are common
Between 20% and 60% of older adults report taking daytime naps, often to make up for poor overnight sleep.1 Read that as a signal about the night before rather than as a fix in itself.
Insomnia symptoms are common after 60
Up to 50% of adults aged 60 or over report experiencing insomnia symptoms at some point, usually trouble falling asleep or staying asleep.1 When you are also managing joint pain, those two problems tend to reinforce each other in daily life.
What we will not claim
You will find a great deal of writing online asserting that specific sleep stages drive tendon, ligament, or cartilage repair on a measurable schedule. We are not able to name a primary source for that claim, so we do not make it, and you should be skeptical of a clinic that does.
What we will say is narrower and, we think, more useful: sleep affects fatigue, pain tolerance, and the consistency with which people carry out a rehabilitation plan. Consistency is the part of recovery that is genuinely within your control.
How sleep fits into a Regen.MD plan
Why we ask about it at the Clinical Evaluation
The Clinical Evaluation is a physician-led review of your history, imaging, and metabolic data. Sleep comes up because it shapes what a realistic activity and rehabilitation schedule looks like for you, and because pain that wakes you at night is diagnostic information in its own right.
Where an orthobiologic procedure is appropriate, it is planned as one part of a longer course of care rather than a single event. Our orthobiologics overview sets out what those procedures are and what they are not.
Practical steps we discuss
- Keep the sleep and wake window consistent, including on days when pain is higher.
- Tell us which positions and activities wake you, so the pain generator can be identified rather than guessed at.
- Reduce late-day stimulation if a busy mind, rather than pain, is what keeps you awake.
Returning to activity without wrecking the night
Increasing activity too quickly tends to show up as restless nights before it shows up as anything else. Our guidance on staged loading is set out in Return to Activity Without Surgery, and we adjust the plan when the nights get worse rather than pushing through.
Find out what is actually driving your pain
Regen.MD begins with a physician-led Clinical Evaluation — a review of your history, imaging, and metabolic data, and a written terrain roadmap. Evaluation is contingent upon review of your data.
Questions? Call (314) 295-3000 or text (314) 886-5902.
Frequently Asked Questions
Does poor sleep slow down healing after an orthobiologic injection?
That has not been established by the sources cited on this page, and we will not tell you it has. What is documented is that broken sleep is common and that it changes fatigue, mood, and how much rehabilitation people tolerate day to day. Those are the reasons we ask about sleep when we review the conditions we evaluate, not a claim about tissue repair rates.
How many hours should I be sleeping?
General guidance for adults, including older adults, is 7 to 9 hours a night, and a night in that range typically contains 4 to 6 full sleep cycles. Whether that range is right for you depends on your health, your medications, and what is waking you up. Our written education on recovery and terrain is collected in the Regen.MD library.
I nap most afternoons. Is that a problem?
Between 20% and 60% of older adults report taking daytime naps, often to make up for poor overnight sleep, so napping is common rather than unusual. What matters is whether the nap is a response to a night that is not working, which is worth raising at your evaluation with Dr. Gurpreet Singh Padda, MD, MBA, MHP.
Where do I start if my sleep and my joint pain are both getting worse?
Start with a physician-led Clinical Evaluation so the sleep pattern and the joint findings are reviewed together rather than separately. Regen.MD sees patients at 4477 Woodson Rd, Suite 103, St. Louis, MO 63134, next to St. Louis Lambert International Airport; details are on our locations page.
Sources
- National Council on Aging. “Sleep Statistics for Older Adults.” NCOA, updated February 22, 2026. https://www.ncoa.org/article/sleep-statistics-older-adults/