Having trouble falling asleep? Possible causes and helpful tips.
Trouble falling asleep: causes and remedies
Find out why you might be having trouble falling asleep and which habits can help you achieve a more restful sleep.
Having trouble falling asleep? Possible causes and helpful tips
Having trouble falling asleep is a common experience, especially during times of stress, changes in sleep schedule, or irregular bedtime habits. Difficulty falling asleep can be caused by recurring thoughts, prolonged screen time, late-night caffeine intake, heavy meals, limited exposure to natural light, or unrelaxing routines. In many cases, improving sleep hygiene and creating a consistent bedtime routine can help the body better prepare for rest. Some natural remedies and specific supplements can also offer support during times of greatest difficulty. In this article, we'll explore the most common causes of difficulty falling asleep, helpful tips to apply every night, and when it's appropriate to seek professional advice.
Why do we have trouble falling asleep?
Difficulty falling asleep is one of the most common sleep disorders among adults. Those who experience it are familiar with that feeling of physical tiredness accompanied by a mind that can't stop: racing thoughts, worries that seem to amplify in the silence of the night, a sense of frustration that grows with each passing minute. In many cases, it's a transitory phenomenon, linked to a period of stress or a change in daily habits. In others, the difficulty persists over time and begins to impact the quality of daytime life.
Sleep is not a passive state: it is an active biological process, regulated by a complex system of hormonal and neurological signals:
● Melatonin, produced by the pineal gland in response to darkness, is the hormone that signals the body that it's time to rest.
● Adenosine, a substance that accumulates during waking hours, increases sleep pressure throughout the day.
When these mechanisms function in sync with environmental rhythms—light and darkness, regular schedules, appropriate temperature—falling asleep feels natural. When they are disturbed, even partially, the entire system jams.
Common Causes of Difficulty Falling Asleep
Understanding why I can't fall asleep is the first step to finding effective solutions. The causes are often multiple and intertwined, but some are particularly frequent and recognizable.
Excessive Stress
Stress and hyperactivation of the nervous system are the most common causes. When the mind is under pressure, the body produces cortisol and adrenaline, hormones that keep the body in a state of alert that's difficult to deactivate. Recurring thoughts about work, relationships, or future worries fuel this cycle, making bedtime the time when everything put off during the day comes back with a vengeance.
Exposure to Blue Light
Smartphones, tablets, computers, and televisions—this is another significant factor. Blue light inhibits the production of melatonin, tricking the brain into thinking it's still daytime. Using electronic devices in the evening, especially in the thirty to sixty minutes before bedtime, measurably delays sleep onset.
Unhealthy and Unbalanced Diet
Poor eating habits can also interfere with sleep: a large, high-fat evening meal slows digestion and can cause reflux or a feeling of heaviness that makes it difficult to relax. Caffeine, found not only in coffee but also in tea, energy drinks, and dark chocolate, has a half-life of about five to six hours: if consumed in the late afternoon, it can still be active in the blood at bedtime.
Finally, the causes of nighttime awakenings and difficulty falling asleep can include environmental factors such as a room that's too warm, outside noise, an unsuitable mattress or pillow, as well as medical conditions such as sleep apnea, restless legs syndrome, or hormonal imbalances. In these cases, a medical evaluation is the most appropriate course of action.
What to do before bed to promote relaxation
Knowing what to do if I can't sleep starts from a fundamental principle: the body needs a gradual transition from wakefulness to sleep. Falling asleep isn't as simple as flipping a switch—the body must be guided toward a state of progressive stillness.
Relaxation techniques are among the most effective and accessible tools. Diaphragmatic breathing—slowly inhaling through the nose for four seconds, holding it for two, and exhaling through the mouth for six—activates the parasympathetic nervous system and signals the body that the danger has passed.
Jacobson's progressive muscle relaxation technique, which involves tensing and then releasing muscle groups in sequence, reduces the physical tension accumulated during the day. Guided meditation and body scans are also practical tools, available free of charge through numerous apps, that many people find effective, especially during times of acute stress.
Relaxing before bed also means creating the right environmental conditions: dim the lights at least an hour before bed, bring the room temperature between 17 and 20 degrees Celsius, reduce external noise with earplugs or a white noise machine, and turn off or distance electronic devices.
Evening Routine: Small Steps to Aid Sleep
A consistent evening routine is one of the most powerful tools for improving sleep quality over time. The brain works through associations: when you repeat the same actions every night, at the same time and in the same order, the body learns to recognize them as signals of readiness for sleep and begins producing melatonin earlier.
The tips for better sleep that sleep professionals most consistently recommend involve establishing this routine: go to bed and wake up at the same time every day, even on weekends; avoid screens in the last hour before bed; take a hot bath or shower thirty to sixty minutes before bed—the subsequent drop in temperature promotes drowsiness; read a paper book, listen to relaxing music, or do a short session of light stretching.
Managing natural light during the day also contributes to the quality of sleep at night: exposure to sunlight in the early morning hours helps synchronize the internal biological clock and enhance the evening production of melatonin. Taking a walk outside after lunch, even for just twenty minutes, can make a real difference.
Natural remedies and herbal medicine for better sleep
Herbal medicine for sleep disorders has an ancient tradition and, for some plants, an increasingly solid scientific basis. The most studied and used are valerian, lemon balm, passionflower, and chamomile, often combined for a synergistic effect:
● Valerian (Valeriana officinalis) is probably the most sought-after plant for sleep support: its extracts appear to influence GABA receptors, the main inhibitory neurotransmitter in the central nervous system, promoting a state of mental calm.
● Lemon balm (Melissa officinalis) has calming and anxiolytic properties, especially useful when difficulty falling asleep is linked to recurring thoughts and emotional tension.
Passionflower (Passiflora incarnata) has a similar effect on anxiety and is often included in formulations for those who tend to wake up in the middle of the night and have difficulty falling asleep again.
These plants are available in various forms—herbal teas, fluid extracts, and capsules—and the most suitable format depends on individual preference and the desired concentration of active ingredients. Herbal teas have a milder effect but also enhance the evening ritual as a time to unwind from the day. Standardized extracts, on the other hand, guarantee a more precise and reproducible amount of active ingredients per dose.
Sleep supplements: when they can be useful
Alongside medicinal plants, the market offers a growing variety of natural supplements to promote sleep, often formulated around melatonin, which is available in Italy as a low-dose dietary supplement.
What to take to sleep better depends on the type of difficulty: those who struggle to fall asleep generally benefit most from small doses of melatonin taken thirty minutes before bedtime, while those who wake up during the night may benefit from extended-release formulations. Melatonin is well-tolerated, non-addictive, and can also be used to manage jet lag or work shift changes.
Difficulty falling asleep that lasts more than two to three weeks, or is accompanied by significant daytime fatigue, irritability, difficulty concentrating, or a depressed mood, always warrants a medical evaluation.
A natural sleep supplement can be a valuable support during temporary difficulties, but it should not be a permanent substitute for good habits or a therapeutic approach when necessary.
Natural sleep remedies work best when they are the last step in a structured approach: careful sleep hygiene, a consistent evening routine, stress management, regular physical activity, and, if indicated, targeted herbal or supplement support. Sleep is a fundamental biological function – learning to protect it is one of the most valuable investments you can make in your health.