Why Can't I Sleep? Understanding the Causes of Troubled Sleep

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Why Can't I Sleep? Understanding the Causes of Troubled Sleep

Forget the night owl versus early bird debate – in today's world, we're all becoming sleep-deprived hybrids. The relentless push for longer hours, peak productivity, and minimal shut-eye is creating a troubling undercurrent: a society running on fumes. From doctors and nurses to pilots and truck drivers, the list of those who navigate daily tasks on a sleep deficit grows ever longer. Even moms and students aren't immune. And India? Well, let's just say catching enough Zzzs has never been a national pastime, ranking second after Japan in sleep deprivation. The boundaries between the day and night are getting blurry and so are troubles with falling and maintaining sleep are increasing.

The Biological Clock      

Our internal clock, the circadian rhythm, acts like a mission control for sleep. As daylight fades, it triggers the release of melatonin, a chemical that tells our body it's time to wind down. Core body temperature also dips, further promoting sleepiness. This powerful one-two punch from our internal rhythm and the decreasing light cues our brain to switch off for the night.

When morning light peeks in, melatonin production stops, and body temperature rises. This internal wake-up call helps us transition smoothly into alertness, ready to tackle the day. It's when our sleep schedule aligns with this natural light-dark cycle that sleep becomes most effective, leaving us feeling refreshed and recharged.

A misaligned circadian rhythm disrupts sleep, leading to difficulty falling asleep, fragmented sleep with frequent wake-ups, and, ultimately, a reduction in total sleep time.


Our ability to fall asleep and stay soundly asleep hinges on both our internal body temperature and the surrounding environment's temperature. 

Our Internal Thermostat: Throughout the night, our bodies go through a natural temperature drop. As we prepare for sleep, our core temperature dips by about 1-2 degrees Fahrenheit. This internal cooling process signals to our brain that it's time to wind down and enter sleep mode.

The Role of the Environment: The temperature of our surroundings plays a crucial role in supporting this internal cooling. Ideally, the bedroom environment should be cool, somewhere between 60-67 degrees Fahrenheit (15.5-19.4 degrees Celsius). A cool room allows for efficient heat dissipation, particularly from our heads and hands, further promoting a comfortable sleep state. When the room temperature is too high, it disrupts this delicate balance. Our bodies struggle to shed excess heat, leading to feelings of discomfort and restlessness. This can manifest in several ways;

As you prepare for sleep, your body temperature naturally dips. In a hot environment, however, this cooling process can be disrupted. Your body goes into overdrive trying to shed heat through sweat and increased blood flow to the skin. This internal fight-or-flight response acts as a stimulant, making it hard to relax and drift off to sleep. Now, even if you do manage to fall asleep, the battle to cool down continues. You might experience night sweats, waking up feeling hot and damp. These sweaty awakenings disrupt your sleep cycle and fragment your precious sleep time. Beyond the immediate disruptions, hot temperatures can also affect the quality of your sleep. Studies suggest that high temperatures decrease the amount of deep sleep you achieve. Deep sleep is essential for feeling truly rested and refreshed, as it's during this stage that your body repairs itself and consolidates memories. So, while you might log a full night's sleep in a hot environment, you might still wake up feeling tired because you missed out on that crucial restorative deep sleep.


As we age, our sleep patterns naturally transform. We may tend to fall asleep earlier and wake up earlier in the morning. While total sleep duration might decrease slightly, a shift in our circadian rhythm can also affect the quality of sleep. Older adults might experience more nighttime awakenings and spend less time in deep sleep stages, which leaves them feeling less rested.

Poor sleep isn't an inevitable part of aging. By addressing underlying health issues, managing stress, and practicing good sleep hygiene, older adults can still experience quality sleep and reap the benefits of a good night's rest.

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Screen Time      

Sunlight is a natural source of blue light, which helps regulate our circadian rhythm – the internal body clock that governs our sleep-wake cycle. During the day, exposure to blue light keeps us alert and energized. However, the problem arises when we introduce artificial blue light in the evening hours.

Melatonin Mayhem: Blue light exposure suppresses the production of melatonin, a hormone crucial for sleep regulation. Melatonin signals to our body that it's time to wind down and prepares us for sleep. With reduced melatonin production, falling asleep becomes difficult, and sleep quality suffers.

Alertness Overload: Blue light has a stimulating effect on the brain, similar to caffeine. This can make it harder to quiet your mind and drift off to sleep, leaving you feeling wired and restless.

The negative impact of screen time before bed goes beyond just blue light. The engaging content on our devices can be mentally stimulating, keeping our brains active when they should be preparing for sleep. Additionally, the emotional response we have to social media or emails can further disrupt our ability to relax.


Our sleep, diet, and meal timing are all interconnected. Our body's natural clock affects how we burn calories throughout the day, and what we eat and when we eat can also influence this cycle. Research shows that insufficient sleep disrupts hormones like melatonin, cortisol, ghrelin and leptin, which are involved in regulating sleep and hunger. People who don't get enough sleep are more likely to have unhealthy eating habits, such as eating irregularly or having a large meal late at night.

Even though Alcohol acts as a depressant and can make you fall asleep faster, it wreaks havoc on your sleep quality throughout the night. 

Alcohol disrupts your sleep cycle, particularly the important Rapid Eye Movement (REM) stage. REM sleep is crucial for memory consolidation, learning, and emotional processing. By suppressing REM sleep, alcohol leaves you feeling foggy and unrested the next day. In addition, you might fall asleep quickly after drinking, but your sleep is likely to be fragmented. This means you experience frequent awakenings throughout the night, even if you don't remember them. These disruptions prevent you from reaching deeper, more restorative sleep stages. Last but not least, alcohol is a diuretic, which means it increases urine production. This can lead to more frequent trips to the bathroom at night, further fragmenting your sleep.

Caffeine, unlike alcohol, acts as a stimulant that throws a wrench into your sleep schedule. It works by blocking adenosine, a brain chemical that promotes sleepiness. With adenosine receptors blocked, you feel more alert and energized. However, this effect disrupts your body's natural wind-down process. Falling asleep becomes difficult as your brain stays on high alert, and even if you do drift off, the total duration of your sleep is likely to be shorter. This is because caffeine can also interfere with deep sleep stages, the restorative periods where your body and mind recharge. So, while that afternoon cup of coffee might perk you up, it can come at the cost of a good night's rest, leaving you feeling tired and sluggish the next day.

Medical conditions       

Restful sleep can be a distant dream for those struggling with various medical conditions. Physical discomfort from arthritis, back problems, or itchy skin can make finding a comfortable position a nightly battle. On top of that, conditions like diabetes and urinary tract infections can lead to frequent urination, forcing you to get up and interrupt precious sleep cycles. Breathing difficulties caused by asthma or COPD make getting a good night's rest even harder. Instead of falling into a deep sleep, you might be struggling to breathe comfortably, coughing, or wheezing throughout the night. Hormonal imbalances add another layer of complexity. Thyroid disorders, menopause, and PCOS can disrupt your natural sleep-wake cycle, making it difficult to fall asleep at night, causing night sweats that wake you up, or leading to early morning awakenings. Mental health struggles can further complicate sleep. Anxiety's constant worry and racing thoughts make it hard to quiet your mind and drift off, while depression can completely alter your sleep patterns, causing insomnia or excessive sleepiness. Even medications intended to improve your health can have unintended consequences. While some medications might be prescribed to help you sleep, many medications used to treat other conditions can come with side effects that disrupt sleep, causing insomnia, fatigue, or even vivid nightmares. Finally, neurological diseases like Parkinson's and Alzheimer's directly impact the part of your brain responsible for regulating sleep. This can manifest as tremors or difficulty turning in bed during the night, or even confusion and nighttime wandering in severe cases.

Mental Fatigue       

Restful sleep can feel like a distant dream when you're grappling with mental fatigue. Imagine your brain as a computer overloaded with tabs – it's buzzing with activity, struggling to shut down and process everything. This mental overload disrupts sleep in several ways. Firstly, worries, anxieties, and to-do lists morph into relentless mental chatter, keeping you from achieving the quiet state necessary for sleep. It's like trying to fall asleep with a radio blaring in the background – the constant noise makes it difficult to drift off. Secondly, even if you manage to doze off, mental fatigue can make it hard to truly relax and transition into deeper sleep stages. Our bodies need to unwind to reach these restorative sleep stages, but mental exhaustion keeps us wired and tense. This can manifest as fragmented sleep with frequent awakenings, leaving you feeling groggy and unrested in the morning. As if that wasn't enough, the frustration of not being able to sleep due to mental fatigue can snowball into a stressor itself. It becomes a vicious cycle – the more stressed you are about sleep, the harder it becomes to achieve it. Imagine tossing and turning all night, worrying about not getting enough sleep, which ironically keeps you even more awake. Thankfully, there are ways to combat mental fatigue and promote better sleep. Relaxation techniques like deep breathing or meditation can help quiet the mental chatter and lull your brain into a calmer state before bed. Establishing a consistent sleep schedule and creating a calming bedtime routine signals to your body that it's time to wind down. Think of it like dimming the lights and putting on calming music before bed – it creates an environment conducive to sleep. If you find yourself constantly overwhelmed by worries, consider journaling or talking to a therapist. Processing these anxieties and developing coping mechanisms can help manage the underlying stress that might be contributing to your mental fatigue and hindering a good night's sleep.

At Solh, we recognize the profound impact mental health has on our overall well-being. We believe in the power of compassion, and that's why we've meticulously crafted a toolkit designed to empower you on your mental wellness journey.

This tool kit goes beyond simply offering resources; it fosters a supportive community. We understand the importance of self-reflection and expression, which is why we offer features like journaling. But sometimes, you need more than just self-reflection. That's where our community support system comes in. Solh provides safe spaces, like support groups, where you can connect with others anonymously or openly, share your experiences, and offer or seek guidance.
Feeling lost or alone in your struggles is a common obstacle on the road to mental well-being. Solh Buddy aims to bridge that gap. It's a virtual companion that provides personalized support and encouragement throughout your journey.

We don't believe in a one-size-fits-all approach. Solh offers a diverse array of resources so you can find the tools that resonate most with you. Whether you prefer the introspective nature of journaling, the power of shared experiences in support groups, or the personalized guidance of Solh Buddy, we have something for everyone.
Take charge of your mental well-being. Explore the comprehensive resources available at Solh and embark on a path towards a healthier, happier you!