Quick answer: if you live close to a large data center (one noise researcher puts the area of greatest impact at about half a mile), the low, constant hum from its cooling systems and backup generators, along with nighttime lighting from the facility, can disrupt sleep for some residents, although research on this specific kind of noise is limited and mixed. The core complaint is that much of the noise is low-frequency sound that standard dBA noise measurements can miss, so a facility can meet legal limits and still keep nearby residents awake. This isn’t a fringe complaint: residents in Wisconsin, Mississippi, New Jersey, Michigan, and other states have filed lawsuits over exactly this issue in 2026. A September 2026 survey of people near data centers and cryptomining sites reported similar complaints; see what the first data center noise survey says about sleep.
Who This Is For
- You’ve noticed a constant, low hum or drone since a data center or “AI campus” started construction or came online near your neighborhood
- You can’t quite describe the sound to other people, it’s more something you feel in your chest or ears than a sound you can point to
- You’re seeing local news coverage or a neighborhood group organizing around a nearby data center, and wondering if the noise complaints are exaggerated or real
- You sleep fine with earplugs against normal noise but still feel disrupted, and you’re wondering if this is a different kind of problem
- You’re evaluating a home purchase or rental near a planned or existing data center and want to understand the real risk before committing
Quick Fix / Summary
- Measure what’s actually happening before assuming it’s in your head: a smartphone sound meter app may undercount the problem, since phone microphones generally respond poorly to very low frequencies and consumer apps aren’t designed to measure infrasound
- Seal gaps first: infrasound and low-frequency sound bypass normal soundproofing more easily than typical noise, so door sweeps, sealed window frames, and closing gaps around vents may help more than adding soft materials like curtains or rugs
- Use sound masking rather than sound blocking in the bedroom: a white noise machine or fan adds broadband sound that helps the brain stop fixating on a low, irregular hum, even though it won’t eliminate the underlying vibration
- Check for nighttime lighting alongside the noise: if the facility’s security or construction lighting reaches your bedroom, blackout curtains or a sleep mask address that separate but related problem
- Document what you’re experiencing (time of night, description, any measurements) before contacting the facility, your municipality, or an attorney, since this kind of noise is hard to substantiate after the fact
- If sleep disruption is significant and ongoing, treat it as an environmental sleep problem worth raising with your doctor, not something to just tolerate indefinitely
Why This Happens
The data center boom has moved these facilities closer to homes
The buildout of AI and cloud computing infrastructure has accelerated sharply since 2023, and many new facilities are being sited near existing residential areas rather than in remote industrial zones, both because of proximity to power infrastructure and because approvals move faster in areas already zoned for some commercial use. That proximity is the root of the problem: a facility’s cooling and backup power systems that would go unnoticed a few miles away become a constant presence a few hundred yards away.
The noise isn’t ordinary noise, it’s largely low-frequency and infrasound
Large data centers run industrial-scale cooling systems around the clock, including chillers, cooling towers, and banks of condenser fans, plus diesel backup generators that get tested regularly and run during power outages. According to a 2026 class-action lawsuit filed by residents of Sturtevant, Wisconsin against Microsoft over its Mount Pleasant data center, reported by Wisconsin Public Radio, the disturbance is described as “not only excessive, but consistent and pervasive,” and the complaint specifically states that much of the “low hum” noise is low-frequency infrasound that isn’t detected or reflected in dBA measurements, the standard unit used in most noise ordinances and consumer sound meters.
This distinction matters because dBA measurement is deliberately weighted to match how the human ear perceives mid-range frequencies, and it discounts very low frequencies on the assumption they’re less bothersome. Research on infrasound and low-frequency noise, roughly below 200 Hz, with infrasound specifically below 20 Hz, the threshold of normal human hearing, has found it can still be perceived, and has been linked to annoyance and sleep-related complaints in some studies. A 1990 laboratory study of infrasound, low-frequency sound and audible sound found that sleeping students were disturbed by low-frequency sound only at high levels (thresholds of about 90 to 95 dB at 40 and 63 Hz) and concluded that audible sound disturbed sleep more, so the evidence is mixed. A 2016 systematic review of observational studies in the general population found some associations between low-frequency noise and sleep-related problems, annoyance, concentration difficulties and headache, but called the evidence limited and said the issue needs more research attention.
Two properties make low-frequency sound and infrasound harder to escape than typical noise. First, it travels much farther than higher-frequency sound before losing energy, so a facility can be audible or perceptible well beyond the distance a normal ordinance was designed to address. Second, it penetrates walls, windows, and typical soundproofing far more easily, because those materials are generally effective at blocking higher frequencies and much less effective at blocking long sound waves. That combination explains a pattern showing up in multiple 2026 lawsuits: residents describing a sound they can feel more than hear, that doesn’t go away with normal home soundproofing, and that doesn’t show up as a violation on the noise readings regulators use.
Saint Louis University biologist Kasey Fowler-Finn, who studies low-frequency sound, told St. Louis Public Radio in September 2026 that data center hums are concentrated in single frequencies that stand out and can carry 800 feet or more, much farther than typical traffic noise. She said the greatest area of impact from large data centers is about 3,000 feet, roughly half a mile, and that noise pollution can disrupt sleep and impair cognitive functioning. She is especially concerned about the area around a proposed data center in Midtown St. Louis.
This is a documented, fast-growing pattern in 2026, not an isolated complaint
The Wisconsin case against Microsoft is one of at least six lawsuits filed against data center operators in 2026 alleging harmful noise, according to industry legal reporting, with cases also filed in Southaven, Mississippi (against an xAI facility, alleging noise, vibration, and air pollution from gas turbines), Vineland, New Jersey, Dowagiac, Michigan, North Tonawanda, New York, and Hood County, Texas. Legal analysts, including a 2026 client alert from WilmerHale, describe this as an emerging wave of nuisance, environmental, and land-use litigation tied to the data center construction boom, and as of early September 2026 none of these cases had yet reached trial or summary judgment. This is worth knowing if you’re experiencing this yourself: it’s a recognized, currently unresolved regulatory gap playing out in courts nationwide, not something unique to one neighborhood or one facility.
Nighttime lighting adds a second, separate disruption
Large data center campuses typically run security and operational lighting through the night, and construction phases often add temporary lighting that can be brighter and less directional than a finished facility’s permanent lighting. This matters for sleep for a different reason than the noise does: exposure to light, especially blue-wavelength light, in the evening and overnight suppresses melatonin production and disrupts the circadian rhythm, the internal clock that governs when you feel sleepy and when you feel alert. A 2023 review on artificial light at night (Davis and colleagues) concludes that artificial light exposure at night impairs the ability to fall asleep and shortens sleep duration, and that blue-enriched light delays melatonin release. How much light from a distant facility actually reaches a bedroom will vary from home to home. If your bedroom windows face a data center campus, the light and the noise are two distinct problems that happen to have arrived together, and it’s worth addressing both.
How to Fix It
Start by understanding what you’re dealing with
Before spending money on fixes, it helps to know whether what you’re experiencing is more of a noise problem, a light problem, or both, since the fixes are different. Standard smartphone sound meter apps are a reasonable first check for ordinary noise, but they aren’t built to register infrasound accurately, so a low reading doesn’t rule out a real infrasound problem. If you want a more rigorous measurement, some acoustic consultants and a small number of specialized apps can measure lower frequency bands, though this is a step most people will only take if they’re pursuing a formal complaint.
Behavioral and scheduling adjustments
If the disturbance is worse at certain times, such as during generator testing or peak cooling demand on hot nights, tracking when it happens can help you plan around it, and gives you concrete documentation if you pursue a complaint later. A consistent bedtime routine and avoiding screens in the hour before bed won’t address the external noise or light directly, but reducing the number of factors working against your sleep matters more when one factor, the facility, is outside your control.
Environmental changes for the noise
Sealing gaps around windows, doors, and vents helps more than most people expect, since low-frequency sound often gets in through small gaps rather than through the wall material itself. Door sweeps and weatherstripping are inexpensive first steps. Heavier curtains and rugs help somewhat with reflected higher-frequency sound but do very little against true low-frequency and infrasound energy, so don’t expect soft furnishings alone to solve this. Because blocking low-frequency sound completely is difficult even with serious renovation, many people get more practical relief from masking it: a white noise machine or a simple fan running overnight adds a steady, broadband sound that makes an irregular low hum far less noticeable to the brain, and an irregular noise is often reported as more bothersome than a steady one.
Environmental changes for the light
If the facility’s lighting reaches your bedroom, this is a more straightforward fix than the noise: blackout curtains block exterior light effectively regardless of its source, and a sleep mask is a low-cost, portable option if you rent or can’t modify your windows. These are the same fixes that work for any bright exterior light source, such as streetlights or a parking lot, so this part of the problem, unlike the noise, responds well to ordinary sleep-environment tools.
Products worth considering
Beyond a white noise machine, some people dealing with persistent low-level noise get additional relief from earplugs designed for sleep, though standard foam earplugs are, like most soundproofing, more effective against higher frequencies than against infrasound. They’re worth trying as a low-cost addition rather than a complete solution on their own.
When to get outside help
If the noise or light is significantly disrupting your sleep on an ongoing basis, this is worth treating as a real environmental health issue rather than something to quietly adjust to. Documenting the problem (dates, times, a description, any measurements or recordings you’re able to get) is useful whether you end up contacting the facility directly, your local government, or, as multiple 2026 cases show, legal counsel. If sleep loss is affecting your daytime functioning, mood, or health, it’s also worth mentioning to your doctor, both because chronic sleep disruption has real downstream effects and because a doctor’s documentation can matter if you pursue a formal complaint. We’re not attorneys and this isn’t legal advice: if you’re considering legal action, a local attorney familiar with nuisance or environmental law can tell you what’s realistic in your specific city or county, since local noise ordinances vary widely and, per the pattern described above, don’t always account for the low-frequency issue in the first place.
Common Mistakes
- Assuming a normal decibel reading from a phone app means there’s no real noise problem, when the issue is specifically a frequency range most consumer meters don’t capture well
- Relying only on soft furnishings like curtains and rugs to block the noise, when low-frequency sound mostly needs sealed gaps and masking rather than absorption
- Treating the noise and the nighttime light as one problem, when they usually need two different fixes
- Waiting to document anything until the disruption has gone on for months, making it much harder to establish a clear pattern later
- Assuming nothing can be done because a facility says it meets legal noise limits, when multiple 2026 cases show those limits often don’t account for infrasound at all
FAQ
Is it normal to feel a hum rather than clearly hear it?
Yes, this is a common description in low-frequency noise and infrasound complaints. Very low frequencies are often perceived as pressure, vibration, or a feeling in the chest or ears rather than a distinct sound, which is part of why it’s hard to describe to someone who isn’t experiencing it and hard to capture with a standard sound meter.
Why doesn’t the facility’s noise show up as a violation if it’s really disrupting sleep?
Most noise ordinances are based on dBA measurement, which is weighted toward the frequencies the human ear is most sensitive to and discounts very low frequencies. A facility can meet that standard while still producing low-frequency sound that residents perceive and report as disrupting sleep, although the research on this is limited and mixed. This gap between how noise is measured and how low-frequency noise is actually experienced is central to the 2026 lawsuits over data center noise.
Will earplugs or a white noise machine fully solve this?
Not completely. Earplugs and typical soundproofing are more effective against higher-frequency sound than against infrasound, which passes through walls and materials more easily. A white noise machine doesn’t block the source noise, but it may make an irregular low hum less noticeable by giving your brain a steady sound to settle into instead.
Should I move if I live near a data center with this problem?
That’s a personal and financial decision this article can’t make for you. Before considering it, it’s worth trying the environmental fixes above, documenting the problem, and, if it’s significant, raising it with the facility, your local government, or a local attorney to understand what options and precedents exist in your area, since regulatory and legal responses to this issue are actively developing in 2026.
Key Takeaways
Data centers can disrupt sleep for some nearby residents, according to lawsuits and early reports, mainly through low-frequency and infrasound noise from cooling and generator systems that standard noise measurements often miss, and separately through nighttime facility lighting. This isn’t an isolated or exaggerated complaint: at least six lawsuits across states including Wisconsin, Mississippi, New Jersey, and Michigan were filed over data center noise in 2026 alone, and legal analysts describe it as a growing wave of litigation tied to the data center construction boom. Sealing gaps, masking the noise with a white noise machine, and using blackout curtains for the separate light issue are the most practical self-directed steps. If the disruption is significant, document it and treat it as a real issue worth raising with the facility, your local government, a local attorney, or your doctor, rather than something to just live with.
About this article
Written by the Sleep Fixes editorial team. We’re not medical professionals. We research each topic against primary sources and hold ourselves to being critical and thorough about what actually makes it onto the site.
This article is based on 2026 litigation filings, industry and legal reporting on data center noise disputes, and published research on low-frequency noise, infrasound, and light pollution’s effects on sleep and circadian rhythm. It is not medical or legal advice. If you’re experiencing significant sleep disruption or considering a formal complaint or legal action, a doctor and a local attorney can give you guidance specific to your situation.
Helpful Next Steps
- Best White Noise Machines for Sleep (2026)
- Best Blackout Curtains for Sleep (2026)
- Best Earplugs for Sleep (2026)
- Best Sleep Mask / Eye Mask for Blocking Light (2026)
- What Is Insomnia? Symptoms, Causes, and How to Actually Fix It
- When the Grid Can’t Keep Up: Heat Waves and Your Sleep
- How Data Centers Heat Up Your Neighborhood (and Sleep)
