Anxiety and Sleep: How Worry Affects Insomnia
Anxiety and sleep are closely connected. Worry can make it difficult to fall asleep, remain asleep or feel properly rested. At the same time, repeatedly sleeping poorly can leave you feeling more tense, emotional and less able to manage everyday challenges.
For some people, anxiety begins before the sleep problem. For others, worrying about whether they will sleep becomes the main thing keeping them awake. Understanding this relationship is an important first step towards breaking the cycle.
Key points about anxiety and sleep
- Anxiety, stress and persistent worrying can increase the likelihood of insomnia.
- Poor sleep can make anxious thoughts and emotions feel harder to manage the following day.
- You do not need to have an anxiety disorder to experience sleep-related worry.
- Waking briefly during the night is normal and does not necessarily mean you have a sleep disorder.
- Trying to force yourself to sleep can make you feel more alert and frustrated.
- Alcohol may make you feel drowsy initially, but it can reduce sleep quality later in the night.
- Caffeine can continue affecting alertness for several hours after it is consumed.
- Cognitive behavioural therapy for insomnia, known as CBT-I, is generally recommended as a first-line treatment for chronic insomnia.
How can anxiety interfere with sleep?
Sleep normally occurs as the mind and body gradually become less alert. Anxiety can interfere with this process by keeping the nervous system in a heightened state.
You may notice physical symptoms such as tense muscles, a faster heartbeat or shallow breathing. You may also experience racing thoughts about work, relationships, health, finances or what needs to be done the next day.
Even when there is no particular problem to solve, the mind may continue reviewing conversations, planning future events or jumping between unrelated thoughts. This mental activity can make it difficult to transition into sleep.
Can poor sleep make anxiety worse?
The relationship between anxiety and sleep can work in both directions. A difficult night can leave you feeling tired, irritable or less resilient the following day. Situations that would ordinarily feel manageable may become more stressful when you are exhausted.
After several poor nights, you may begin anticipating another bad night. This can create a repeating pattern:
- You experience anxiety or stress.
- You have difficulty sleeping.
- You feel tired and less able to cope the next day.
- You become concerned about not sleeping again.
- The concern makes it even harder to relax at bedtime.
Sometimes the original source of stress passes, but the sleep-related worry remains. This helps explain why short-term sleep disruption can occasionally develop into a longer-lasting problem.
Is waking during the night normal?
Brief awakenings are a normal part of sleep. Some people remember them clearly, while others return to sleep without noticing.
The awakening itself may not be the main problem. Difficulties can arise when you check the time, calculate how many hours remain before morning or begin predicting how badly the next day will go.
These thoughts can increase alertness and make it harder to fall asleep again. Turning the clock away and avoiding repeated time-checking may help reduce this pressure.
How can I stop worrying about sleep?
It is understandable to feel concerned when poor sleep begins affecting your daily life. However, placing too much pressure on yourself to achieve a perfect night can make sleep feel like a performance test.
Instead of thinking, “Tomorrow will be a disaster if I do not fall asleep now”, try a more balanced response such as, “Tomorrow may be more difficult, but I have managed tired days before.”
Other helpful strategies may include:
- Keeping a consistent morning wake-up time, including after a difficult night.
- Avoiding repeated clock-checking during the night.
- Creating a calm transition between the day and bedtime.
- Writing down unfinished tasks or concerns before getting into bed.
- Practising slow breathing, meditation or progressive muscle relaxation.
- Getting out of bed for a quiet activity if you have become frustrated and wide awake.
- Returning to bed when you begin feeling sleepy again.
These changes can take time. The aim is not to force sleep, but to reduce the alertness and pressure that may be preventing it.
What can I do when my mind will not switch off?
A busy mind does not always feel like anxiety. You might simply find yourself thinking continuously about ordinary tasks, ideas or conversations.
One useful strategy is to create a designated thinking or “worry” period earlier in the day. Set aside a short period to write down your concerns, identify anything you can act on and leave the remaining issues until the following day.
If the same thoughts return at bedtime, remind yourself that they have already been acknowledged and do not need to be solved overnight.
It may also help to focus your attention on something neutral, such as your breathing, physical sensations or a calming mental image. The purpose is not to fight your thoughts, but to notice them without becoming caught up in them.
Can alcohol help with sleep?
Alcohol can create an initial feeling of relaxation and may make it easier to fall asleep. However, this does not necessarily result in restorative sleep.
As alcohol is processed by the body, sleep can become lighter and more fragmented. You may wake more frequently, experience disrupted breathing, need to use the bathroom or wake earlier than intended.
Relying on alcohol to manage stress or insomnia can also become an unhealthy pattern. If you regularly use alcohol to help you sleep, discuss this with a health practitioner before making significant changes.
How does caffeine affect sleep?
Caffeine increases alertness and can remain active in the body for several hours. Its effects vary considerably between individuals, meaning an afternoon coffee may not affect one person but could interfere substantially with another person’s sleep.
Caffeine is found in coffee, tea, energy drinks, cola, chocolate, pre-workout supplements and some medicines.
If you are experiencing poor sleep, consider limiting caffeine to the morning for several weeks and observe whether your sleep changes. Avoiding large amounts of caffeine can also reduce symptoms such as restlessness, a racing heartbeat and jitteriness that may resemble or intensify anxiety.
Can medicine help with anxiety-related insomnia?
Medicine may have a role in treating certain sleep or anxiety problems, but it is not suitable for everyone. Some sleeping medicines are intended only for short-term use and may cause tolerance, dependence, next-day drowsiness or other side effects.
Different medicines can also interact with alcohol, supplements and other treatments. Do not start, stop or change a prescribed medicine without speaking with your doctor or pharmacist.
A health practitioner can assess possible causes of your sleep problem and explain the potential benefits, limitations and risks of the available treatment options.
What is cognitive behavioural therapy for insomnia?
Cognitive behavioural therapy for insomnia, commonly called CBT-I, is a structured treatment that addresses the thoughts, habits and behaviours that can maintain insomnia.
Depending on your circumstances, CBT-I may involve:
- Learning how sleep works and which factors influence it.
- Changing unhelpful beliefs or fears about sleep.
- Rebuilding a strong association between bed and sleeping.
- Reducing the amount of frustrated wakefulness spent in bed.
- Developing a consistent sleep and wake routine.
- Using relaxation strategies to reduce mental and physical alertness.
CBT-I can be provided by an appropriately trained psychologist or other qualified health professional. Some people may also be suitable for a recognised online CBT-I program.
What healthy sleep habits can I try?
Healthy sleep habits may not resolve every cause of insomnia, but they can create better conditions for sleep and support other treatments.
- Wake at approximately the same time every morning.
- Spend time outside during daylight hours.
- Exercise regularly, but avoid vigorous exercise immediately before bed if it makes you feel alert.
- Keep the bedroom dark, quiet and comfortably cool.
- Reduce stimulating screen use before bedtime.
- Avoid heavy meals close to bedtime.
- Limit caffeine, nicotine and alcohol.
- Use the bed primarily for sleep rather than work, planning or extended scrolling.
- Develop a predictable wind-down routine.
Try not to change too many things at once. Selecting two or three realistic habits and practising them consistently is often more manageable.
When should I speak with a health practitioner?
Consider speaking with a doctor if your sleep difficulties are persistent, regularly affect your mood or concentration, or interfere with work, driving and daily activities.
Chronic insomnia generally involves difficulty falling asleep, staying asleep or waking too early on at least three nights per week for three months or longer, together with an effect on daytime functioning. However, you do not need to wait three months before seeking help.
Medical assessment is particularly important if you experience:
- Loud snoring, choking or gasping during sleep.
- Uncomfortable sensations or an irresistible need to move your legs.
- Severe daytime sleepiness or falling asleep unexpectedly.
- Persistent pain, breathing problems, reflux or other symptoms disturbing your sleep.
- Significant changes in your mood or anxiety.
- Sleep problems that began after starting or changing a medicine.
- Drowsiness that may make driving or operating machinery unsafe.
A health practitioner may ask about your sleep routine, physical and mental health, medicines, caffeine and alcohol consumption, work schedule and any symptoms experienced during the night. Keeping a sleep diary for one or two weeks can make these patterns easier to discuss.
Getting support for anxiety and poor sleep
Anxiety-related sleep difficulties are common, but they should not simply be accepted as something you must live with. The appropriate approach will depend on how long the problem has been present, its possible causes and how it affects your daily life.
Herbly provides online consultations where a health practitioner can review your circumstances and discuss options that may be appropriate. Treatment recommendations and prescribing decisions are made independently following an individual clinical assessment.
