Restless Feeling at Night? Causes, Relief and Better Sleep

You know the feeling. You lie down after a long day, close your eyes, and your body just will not cooperate. Your legs want to move. Your mind keeps circling. You flip from one side to the other, punch the pillow into a new shape, and stare at the ceiling wondering why sleep feels so far away. That restless feeling is more than just annoying. It is a signal worth paying attention to.

Restlessness affects millions of Canadians every year. According to Statistics Canada, one in three Canadian adults is not getting the recommended seven to nine hours of sleep per night, and a significant portion of those poor sleepers point to restlessness as the primary reason they cannot settle down (Statistics Canada, 2022). Whether your restless feeling shows up as physical agitation, racing thoughts, or an overwhelming urge to move your legs, understanding the root cause is the first step toward getting the rest you deserve. You might also benefit from our guide to home remedies to fall asleep quickly for practical tips you can try tonight.

At Mattress Miracle in Brantford, we have spent nearly four decades helping people solve exactly this kind of problem. And while not every restless feeling is about your mattress, you would be surprised how often the right sleep surface makes a real difference.

What Does Restlessness Actually Mean?

Restlessness is a broad term that describes a state of being unable to rest, relax, or be still. It can show up in your body, your mind, or both at the same time. Some people experience it as a vague sense of unease or agitation. Others feel it as a physical need to keep moving, pacing, or fidgeting. At night, restlessness often looks like tossing and turning, frequent waking, or the inability to find a comfortable position.

From a clinical perspective, restlessness falls under the umbrella of psychomotor agitation, which the American Psychiatric Association defines as purposeless physical activity driven by mental tension. But you do not need a clinical diagnosis to know what it feels like. Most people have experienced at least occasional restlessness, and for many, it becomes a nightly struggle that chips away at their quality of life.

8 min read

Common Causes of Restlessness

A restless feeling rarely has a single cause. More often, it is a combination of factors that build on each other. Understanding these triggers can help you figure out which ones apply to your situation.

Caffeine and Stimulants

That afternoon coffee might seem harmless, but caffeine has a half-life of about five to six hours. This means that if you drink a cup of coffee at 3 p.m., half of that caffeine is still circulating in your system at 9 p.m. For people who are sensitive to stimulants, even a morning coffee can contribute to a restless feeling at bedtime. Energy drinks, certain teas, chocolate, and some medications also contain caffeine or other stimulants that can keep your nervous system on alert.

Stress and Worry

Stress is one of the most common drivers of restlessness. When you are dealing with work pressure, financial worries, relationship issues, or health concerns, your brain has a hard time shutting down at night. Research from Frontiers in Psychology found that stress not only directly predicts poor sleep quality but also affects sleep through rumination, emotion-focused coping, and even increased smartphone use before bed (Frontiers in Psychology, 2024).

Physical Discomfort

Sometimes the answer is simpler than you think. A mattress that is too firm, too soft, too hot, or simply worn out can make it impossible to get comfortable. If you find yourself constantly shifting positions or waking up with aches and pains, your sleep surface might be the culprit. We see this all the time at our showroom, people who have been struggling with restlessness for months, only to discover that their mattress has lost its support.

Irregular Sleep Schedule

Your circadian rhythm thrives on consistency. Going to bed at midnight on weekdays and 2 a.m. on weekends sends mixed signals to your internal clock. The result is often an unsettled, wired-but-tired sensation when you do try to sleep at your "normal" time, because your body is not sure it is actually time to wind down.

Screen Time Before Bed

Blue light from phones, tablets, and computers suppresses melatonin production, the hormone that signals your brain it is time to sleep. But beyond the light itself, the content you consume before bed matters too. Scrolling through social media, checking work emails, or watching intense shows keeps your brain engaged and alert, making it much harder to transition into a calm, sleep-ready state.

Diet and Evening Meals

Eating a heavy meal too close to bedtime forces your digestive system to work when it should be winding down. Spicy foods, alcohol, and high-sugar snacks can all contribute to nighttime agitation. Alcohol is particularly sneaky because while it may help you fall asleep initially, it disrupts sleep architecture later in the night, leading to fragmented, restless sleep.

Lack of Physical Activity

Regular exercise helps regulate your sleep-wake cycle and burns off excess physical and mental energy. Without it, your body may not feel physically tired enough to settle down, even when your mind is exhausted. The Canadian Society for Exercise Physiology recommends at least 150 minutes of moderate-to-vigorous physical activity per week for adults, and meeting this guideline has been shown to improve sleep quality significantly.

How Restlessness Disrupts Your Sleep

Restlessness does not just make it hard to fall asleep. It fundamentally alters the quality of sleep you get, even during the hours you do manage to stay in bed.

When restlessness keeps pulling you out of deeper sleep stages, you miss out on the most restorative parts of the sleep cycle. Deep sleep (Stage 3) is when your body repairs tissue, strengthens the immune system, and consolidates memories. REM sleep is essential for emotional regulation and cognitive function. Without enough of either, you wake up feeling foggy, irritable, and, ironically, even more restless the following night. If you also wake up trembling, the combination of fragmented sleep and an activated nervous system could be the cause.

A landmark meta-analysis published by the American Psychological Association in 2023 analysed 154 studies spanning five decades with over 5,700 participants. The findings were clear: all forms of sleep loss resulted in reduced positive emotions, increased anxiety symptoms, and blunted responses to emotional stimuli (APA, Psychological Bulletin, 2023). In other words, poor sleep from restlessness does not just leave you tired. It changes how you feel and think during the day.

Medical Conditions Linked to Restless Feelings

While lifestyle factors account for many cases of restlessness, several medical conditions can cause or worsen a restless feeling. If your restlessness is persistent and does not respond to basic lifestyle changes, it is worth discussing these possibilities with your healthcare provider.

Restless Legs Syndrome (RLS)

Restless legs syndrome is a neurological condition that causes an irresistible urge to move the legs, usually accompanied by uncomfortable sensations like crawling, tingling, or aching. Symptoms typically worsen in the evening and during periods of inactivity, making bedtime especially difficult. A 2023 systematic review and meta-analysis published in the Journal of Sleep Research estimated the global prevalence of RLS at approximately 7 percent among adults aged 20 to 79, with women affected more often than men (Brostrom et al., 2023).

RLS is linked to dopamine regulation in the brain and can be associated with iron deficiency. Treatment options range from lifestyle modifications and iron supplementation to prescription medications that regulate dopamine levels.

Generalized Anxiety Disorder (GAD)

Restlessness is actually one of the diagnostic criteria for generalized anxiety disorder. People with GAD experience persistent, excessive worry that is difficult to control, along with physical symptoms like muscle tension, fatigue, and that nagging sense of unease. If your restlessness is accompanied by chronic worry that seems out of proportion to the actual circumstances, GAD may be a factor.

Hyperthyroidism

An overactive thyroid gland produces excess thyroid hormone, which speeds up your metabolism and can cause restlessness, nervousness, rapid heartbeat, and difficulty sleeping. A simple blood test can check your thyroid hormone levels, and treatment is usually straightforward once the condition is identified.

Periodic Limb Movement Disorder (PLMD)

Unlike RLS, which you feel while awake, PLMD involves involuntary leg movements during sleep that you may not even be aware of. Your partner might notice your legs twitching or jerking throughout the night. These movements fragment your sleep and can leave you feeling exhausted and restless even after spending a full night in bed.

Iron Deficiency

Low iron levels are associated with both RLS and general feelings of restlessness and fatigue. Iron plays a crucial role in dopamine production and oxygen transport throughout the body. Menstruating women, vegetarians, and people with certain digestive conditions are at higher risk for iron deficiency.

Restlessness and Mental Health

The relationship between restlessness and mental health is a two-way street. Mental health conditions can cause restlessness, and restlessness can worsen mental health. Understanding this cycle is important for breaking free from it.

Anxiety and Restlessness

Anxiety activates your sympathetic nervous system, flooding your body with stress hormones that prepare you for action. This is helpful if you are facing a genuine threat, but when anxiety is chronic, your body stays in a heightened state of alertness. The physical manifestation of this is often a restless feeling: an inability to sit still, a sense of being "on edge," and difficulty relaxing enough to sleep.

Research from the American Psychological Association found that even a single night of poor sleep due to restlessness significantly increased anxiety levels the following day, creating a vicious cycle where anxiety causes restlessness and restlessness amplifies anxiety (APA, 2023).

Depression and Restlessness

While depression is often associated with lethargy and low energy, agitated depression is a subtype that features pronounced restlessness and inner turmoil. People experiencing agitated depression may pace, wring their hands, or feel unable to stay still despite feeling emotionally flat or hopeless. This combination can be particularly distressing and often disrupts sleep.

ADHD and Restlessness

Attention deficit hyperactivity disorder commonly features restlessness as a core symptom, especially in adults. Unlike childhood ADHD, which often presents as obvious hyperactivity, adult ADHD restlessness tends to be more internal: a constant feeling of mental restlessness, difficulty relaxing, and trouble winding down at the end of the day.

The Mattress Connection: Why Your Bed Matters More Than You Think

Here is something most articles about restlessness overlook: the physical environment where you sleep plays a massive role in whether your body can actually relax. And the centrepiece of that environment is your mattress.

A systematic review published in Sleep Health found that medium-firm mattresses promoted the best sleep quality, reduced back pain by 48 percent, and improved spinal alignment in adults with and without existing back pain (Radwan et al., 2015). Another study presented at the SLEEP 2023 conference found that switching to a memory foam mattress improved both objectively measured and self-reported sleep quality and consistency compared to participants' original mattresses.

How an Old or Wrong Mattress Creates Restlessness

When your mattress cannot properly support your body, your muscles have to work harder to maintain spinal alignment. This subtle but constant effort keeps your body in a low-level state of tension that prevents you from fully relaxing. The result is that restless feeling and a constant need to shift and adjust.

The Pressure Point Problem

When a mattress does not conform to your body's natural curves, pressure builds at the heaviest contact points, typically your hips and shoulders if you sleep on your side. This pressure restricts blood flow and triggers your body to move. Research shows that people sleeping on unsupportive surfaces change positions significantly more often during the night, with each position change briefly pulling them out of deeper sleep stages.

Temperature Regulation

Your core body temperature needs to drop by about one to two degrees for you to fall asleep and stay asleep. A mattress that traps heat works against this natural process. Gel-infused foams, innerspring coils that allow airflow, and breathable cover fabrics all help maintain a comfortable sleeping temperature. If you are waking up hot and kicking off the covers, your mattress may be driving that restless feeling.

Bone conditions can also fuel nighttime restlessness. Our guide on osteoporosis and fatigue explains how weakened bones disrupt sleep and what mattress features help.

Practical Strategies for Relief

The good news is that regardless of what is behind your restless feeling, there are concrete steps you can take to find relief. Some of these work immediately, while others build over time to create lasting improvement.

Movement and Exercise

Regular physical activity is one of the most effective natural remedies for restlessness. Exercise reduces cortisol levels, increases endorphins, and helps regulate your circadian rhythm. However, timing matters. Vigorous exercise within two to three hours of bedtime can actually increase restlessness by raising your core body temperature and stimulating your nervous system. Aim to finish intense workouts by early evening, and if you want to move before bed, stick to gentle stretching or yoga.

Progressive Muscle Relaxation

This technique involves systematically tensing and then releasing each muscle group in your body, starting from your toes and working up to your head. It sounds simple, but research consistently shows that progressive muscle relaxation reduces physical tension and the mental agitation that keeps you awake. Practice it while lying in bed as part of your wind-down routine.

Breathing Exercises

The 4-7-8 breathing technique is particularly effective for calming restlessness. Inhale through your nose for four counts, hold for seven counts, and exhale slowly through your mouth for eight counts. This pattern activates your parasympathetic nervous system, the branch responsible for rest and relaxation. Even three to four cycles of this breathing pattern can noticeably calm your body and mind.

Limit Caffeine and Alcohol

Cut off caffeine by early afternoon (noon is ideal for sensitive individuals) and limit alcohol consumption, especially within three hours of bedtime. While alcohol may help you fall asleep, it disrupts REM sleep and increases restlessness during the second half of the night.

Cool Your Bedroom

Keep your bedroom temperature between 15 and 19 degrees Celsius. A cooler room supports the natural drop in core body temperature needed for sleep onset and helps prevent the overheating that triggers restless movement throughout the night.

Magnesium

Magnesium plays a role in muscle relaxation and nervous system regulation. Some research suggests that magnesium supplementation may help reduce restlessness, particularly in people with restless legs syndrome. Foods rich in magnesium include dark leafy greens, nuts, seeds, and whole grains. If you are considering a supplement, speak with your healthcare provider about the appropriate form and dosage.

Building a Better Bedtime Routine

Sleep hygiene is a term that gets thrown around a lot, but the basics genuinely work. Creating consistent habits around sleep signals your brain that it is time to wind down, reducing that restless feeling before it has a chance to take hold.

The One-Hour Wind-Down

Give yourself a full hour before your target bedtime to transition from daytime activity to sleep mode. During this hour:

• Put away screens (or at minimum, use blue-light filtering)
• Dim the lights throughout your home
• Engage in calming activities like reading, gentle stretching, or listening to quiet music
• Avoid checking work emails or engaging with stressful content
• Keep conversations light and positive

Consistent Sleep and Wake Times

The Canadian 24-Hour Movement Guidelines recommend seven to nine hours of sleep per night for adults aged 18 to 64, with consistent sleep and wake times (Canadian Society for Exercise Physiology, 2020). Going to bed and waking up at the same time every day, including weekends, is one of the most powerful things you can do for your circadian rhythm. Yes, even on Saturdays. Your body does not know it is the weekend.

Optimize Your Sleep Environment

Beyond your mattress, several environmental factors affect restlessness:

• Darkness: Use blackout curtains or a sleep mask. Even small amounts of light can suppress melatonin.
• Quiet: If you cannot control noise, consider a white noise machine or earplugs.
• Clutter: A messy bedroom can increase stress and mental restlessness. Keep your sleep space clean and calming.
• Bedding: Breathable, natural-fibre sheets and a pillow that supports your neck properly complement a good mattress.

The Bed Is for Sleep

Working, scrolling, or watching TV in bed trains your brain to associate the bed with wakefulness and stimulation. Reserve your bed for sleep (and intimacy) only. If you have been lying in bed for more than 20 minutes and still feel restless, get up, go to another room, and do something quiet until you feel drowsy. Then return to bed. This technique, called stimulus control, is a core component of cognitive behavioural therapy for insomnia (CBT-I), which is considered the gold standard treatment for chronic sleep difficulties.

When to See a Doctor

While occasional restlessness is normal and usually responds to lifestyle adjustments, certain patterns warrant a conversation with your healthcare provider.

Consider seeing your doctor if:

• Your agitation occurs most nights and has lasted more than a month
• Restlessness is accompanied by strong urges to move your legs, especially at night
• You experience involuntary limb movements during sleep (your partner may notice this)
• Restlessness is accompanied by persistent anxiety, depression, or mood changes
• You have tried improving your sleep hygiene without significant improvement
• Daytime fatigue from restless sleep is affecting your work, driving, or relationships
• You have recently started a new medication and noticed increased restlessness

Your doctor may recommend a sleep study (polysomnography), blood work to check for iron deficiency or thyroid issues, or a referral to a sleep specialist. In Canada, sleep clinics are available through physician referral, and many are covered by provincial health plans.

Choosing the Right Mattress for Restless Sleepers

If you have identified your mattress as a potential contributor to your nighttime agitation, or if you simply want to give yourself the best possible chance at a good night's sleep, here is what to consider when shopping for a new mattress.

Support and Firmness

A medium-firm mattress works well for most people, but the ideal firmness depends on your body type, sleep position, and personal preference. Side sleepers generally need a softer surface to cushion their shoulders and hips. Back sleepers do well with medium-firm. Stomach sleepers usually need firmer support to prevent their midsection from sinking. The key is proper spinal alignment: when you lie on your side, your spine should form a straight line from your neck to your tailbone.

Coil Count and Construction

For innerspring and hybrid mattresses, coil count and coil type matter. A higher coil count generally means better support distribution and less motion transfer. For reference, the Restonic ComfortCare models we carry at Mattress Miracle feature 1,222 coils in a queen size, which provides excellent targeted support and minimizes the pressure points that cause restless tossing and turning.

Motion Isolation

If you share your bed with a partner, motion isolation is critical. Every time your partner moves, that motion travels through the mattress. If your mattress does not absorb and isolate that movement, it disrupts your sleep and contributes to restlessness. Memory foam and pocketed coil systems both excel at motion isolation.

Temperature Regulation

Look for mattresses with cooling features if you tend to sleep hot. Gel-infused foams, open-coil designs that promote airflow, and breathable fabric covers all help regulate temperature. Overheating is one of the most common but overlooked causes of restless sleep.

The Value of Trying Before Buying

Online mattress shopping is convenient, but there is no substitute for lying on a mattress in person. What feels comfortable for ten seconds in a showroom is not necessarily what will feel comfortable for eight hours, but experienced staff can guide you based on your body type, sleep position, and specific concerns about restlessness.

Canadian-Made Options

We are grateful to carry Sleep In mattresses, which are Canadian-made and feature a flippable design. A flippable mattress gives you two firmness options in one product, which can be particularly helpful if your restlessness is related to comfort preference. If one side feels too firm and you are tossing all night, flip it over and try the other. It is a simple solution that more people should know about.

Local Support in Brantford

Dealing with a persistent restless feeling can be isolating, but you do not have to figure it out alone. Whether your restlessness is rooted in stress, a medical condition, or simply an uncomfortable mattress, there are resources and people who can help.

At Mattress Miracle, we have been part of the Brantford community since 1997. Our approach has always been personal. When you come into our showroom, we do not just point you toward the most expensive option. We ask questions, listen to your concerns, and help you find a sleep surface that addresses your specific situation. If your trouble is about pressure points, we will find a mattress that relieves them. If it is about heat, we will focus on cooling options. If your partner's movement is waking you up, we will show you what real motion isolation feels like.

Our customers consistently rate us 4.9 out of 5 stars on Google, and a big part of that is because we genuinely care about helping people in our community sleep better. We also offer white-glove delivery throughout the region, so you do not have to worry about the logistics of getting your new mattress home and set up.

Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. If you are experiencing persistent restlessness, sleep disturbances, or symptoms of a medical condition, please consult a qualified healthcare professional. The information provided here should not be used as a substitute for professional medical diagnosis or treatment.

References

1. Statistics Canada. (2022). Sleep behaviours among Canadian adults: Findings from the 2020 Canadian Community Health Survey. Health Reports, 33(3). Retrieved from statcan.gc.ca
2. Brostrom, A., et al. (2023). Worldwide estimation of restless legs syndrome: A systematic review and meta-analysis of prevalence in the general adult population. Journal of Sleep Research, 32(3), e13783. PubMed
3. Palmer, C. A., and Alfano, C. A. (2023). Sleep loss and emotion: A systematic review and meta-analysis. Psychological Bulletin, 149(11-12), 736-774. American Psychological Association. APA
4. Radwan, A., et al. (2015). Effect of different mattress designs on promoting sleep quality, pain reduction, and spinal alignment in adults with or without back pain: Systematic review of controlled trials. Sleep Health, 1(4), 257-267. PubMed
5. Canadian Society for Exercise Physiology. (2020). Canadian 24-Hour Movement Guidelines for Adults. csepguidelines.ca
6. Bonnet, M. H., and Arand, D. L. (2010). Hyperarousal and insomnia: State of the science. Sleep Medicine Reviews, 14(1), 9-15. PubMed

Related Reading

• Understanding Anxiety Symptoms and How They Affect Your Sleep
• Why You Have Bad Sleep Quality and What to Do About It
• The Best Sleeping Habits for a Restful Night
• What Stress Dreams Mean and How to Stop Them
• Restless Legs Syndrome and Sleep: What Causes It, What It Feels Like, and How to Get Relief