Quick Answer: There is a significant overlap between ADHD and Sleep Apnea. Sleep deprivation mimics ADHD symptoms: trouble focusing, hyperactivity (in kids), and irritability. Studies show that treating sleep apnea can significantly reduce, or even eliminate, ADHD-like symptoms in some patients. If you or your child snores and has ADHD, get a sleep study.
Brad, Owner, 40+ years of experience: "We have been helping Brantford families sleep better since 1997. Every customer gets personal attention, honest advice, and the kind of follow-up service you just do not get from big box stores."
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You have trouble focusing. You fidget. You interrupt people. You are diagnosed with ADHD.
But you also snore. You wake up with a dry mouth. You feel exhausted until noon.
At Mattress Miracle, we aren't doctors, but we follow sleep science closely. One of the most important discoveries in recent years is the massive overlap between ADHD (Attention Deficit Hyperactivity Disorder) and OSA (Obstructive Sleep Apnea).
Why Tired Brains Look Like ADHD
Your prefrontal cortex controls "Executive Function" - planning, focusing, and impulse control. It is also the part of the brain most sensitive to sleep deprivation.
If you have sleep apnea, you stop breathing dozens of times an hour. Your brain is starved of oxygen and fractured by micro-awakenings. You wake up with a prefrontal cortex that is essentially offline.
The Result: You can't focus. You make impulsive decisions. You are moody. To a doctor, this looks exactly like ADHD.
Why Tired Kids Get Hyper
In adults, sleepiness looks like lethargy. In children, sleepiness looks like hyperactivity.
When a child is exhausted, their body releases adrenaline and cortisol to stay awake. They literally "bounce off the walls." They become aggressive, defiant, and unable to sit still.
Brad, our owner, advises parents: "If your child is diagnosed with ADHD but also snores or breathes through their mouth, ask for a sleep study before you start medication."
The One Sign You Can't Ignore
Not everyone with ADHD has apnea, and not everyone with apnea has ADHD. But there is one major clue: Mouth Breathing.
If you or your child sleeps with an open mouth, snores, or drools heavily, your airway is compromised. This is not normal. Healthy sleep is silent and nasal.
If you see these signs plus ADHD symptoms, the root cause is likely physical (breathing), not neurological.
Can Fixing Sleep "Cure" ADHD?
For some, yes. A landmark study found that when children with sleep apnea had their tonsils removed (opening the airway), their ADHD symptoms dropped significantly. Some no longer met the criteria for ADHD at all.
For adults, using a CPAP machine or an Adjustable Bed (to elevate the head and open the airway) often leads to a massive improvement in focus and calmness during the day. You aren't "scatterbrained"; you are just exhausted.
The Mechanical Fix
While you wait for a medical diagnosis, try elevating your head at night. An adjustable base helps keep the airway open using gravity. If your "brain fog" clears up after a week of sleeping elevated, you have your answer.
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Frequently Asked Questions
Shop: Adjustable Beds for Sleep Apnea at Mattress Miracle
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- Restonic ComfortCare Dalton & Albany
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Or browse the mattress collection in our Brantford showroom.
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We are a family-owned mattress store in Brantford, helping our community sleep better since 1997. Come try mattresses in person and get honest, no-pressure advice.
441 1/2 West Street, Brantford, Ontario
Call 519-770-0001Does ADHD medication cause insomnia?
Yes. Stimulants (like Ritalin or Adderall) are powerful wakefulness agents. If taken too late in the day, they can make it impossible to fall asleep, creating a vicious cycle of sleep deprivation worsening the ADHD symptoms.
Can weighted blankets help both?
Yes. Weighted blankets provide Deep Pressure Stimulation, which calms the nervous system (good for ADHD) and reduces tossing and turning (good for sleep quality).
Is restless leg syndrome related?
Yes. RLS is common in people with ADHD (dopamine link) and can also disrupt sleep, mimicking the fatigue of apnea. Iron and magnesium supplements often help.
What if I don't snore?
You can still have "Upper Airway Resistance Syndrome" (UARS), which is a milder form of apnea common in thin women. You don't choke, but you work hard to breathe, leading to the same daytime brain fog.
Visit Our Brantford Showroom
Mattress Miracle
441 1/2 West Street, Brantford
Phone: (519) 770-0001
Hours: Mon-Wed 10-6, Thu-Fri 10-7, Sat 10-5, Sun 12-4
Our team has 38 years of experience helping customers find the right sleep solution. Call ahead or walk in any day of the week.
Visit Our Brantford Showroom
We are located at 441½ West Street in downtown Brantford. Free parking available. Our team does not work on commission, so you get honest advice based on your needs.
Mattress Miracle , 441½ West Street, Brantford, ON · (519) 770-0001
Hours: Monday–Wednesday 10am–6pm, Thursday–Friday 10am–7pm, Saturday 10am–5pm, Sunday 12pm–4pm.
Sources
- Youssef, N. A. et al. (2011). "Is obstructive sleep apnea associated with ADHD?" Annals of Clinical Psychiatry, 23(3), 213-224. PubMed 21808754. Reviews comorbidity between OSA and ADHD, noting up to 25% of children with ADHD may have untreated SDB.
- Chervin, R. D. et al. (2002). "Inattention, hyperactivity, and symptoms of sleep-disordered breathing." Pediatrics, 109(3), 449-456. PubMed 11875140
- Canadian ADHD Resource Alliance. (2024). Sleep and ADHD. caddra.ca