For many people, anxiety doesn’t peak during the busiest parts of the day. It shows up at night.

You finally get into bed. The house is quiet. The distractions stop. And suddenly your heart is racing, your thoughts won’t slow down, and sleep feels impossible.

If you’ve ever wondered “Why does my anxiety get worse at night?”, you’re not imagining it, and you’re certainly not alone. There are clear psychological and biological reasons this happens.

Why Anxiety Often Spikes at Night

Night-time anxiety isn’t random. It’s the result of several systems in the body and mind coming together, often after a long day of coping.

  1. Your Brain Loses Its Distractions

    During the day, we’re busy. Work, conversations, notifications, noise… all of these keep the brain externally focused.

    At night, these distractions disappear.

    This creates space for unresolved thoughts, emotions, and worries to surface. The mind fills the silence with whatever hasn’t been processed yet. This is often stress, fear, or anticipation.

    Psychologically, this is known as cognitive rebound: the more we push thoughts away during the day, the more forcefully they return when things quieten down. (Sort of like trying to hold a balloon under water…)

  2. Fatigue Weakens Emotional Regulation

    Research shows that emotional regulation relies heavily on the prefrontal cortex (the part of the brain responsible for reasoning, perspective, and calming emotional responses).

    At night, this part of the brain is tired.

    When we’re fatigued, the brain’s threat-detection system (the amygdala) becomes more active, while our ability to reassure ourselves weakens. This imbalance makes worries feel louder, more convincing, and harder to control.

    This is why a problem that feels manageable at 2 pm can feel overwhelming at 2 am.

  3. Your Nervous System Finally Notices the Day

    If you’ve been pushing through stress, deadlines, emotional labour, or people’s needs all day, your nervous system may not get a chance to slow down until you stop.

    Night-time is often the first moment your body has to register how much it’s been carrying.

    Anxiety can be the nervous system’s delayed response; a signal that it’s been running in high alert mode for too long.

  4. The Body Interprets Stillness as Vulnerabililty

    From an evolutionary perspective, night-time meant danger. Reduced visibility, less protection, fewer resources.

    For people with anxiety, trauma histories, or chronic stress, stillness can unconsciously register as unsafe. This can trigger hyper vigilance; a state where the body stays alert even when there’s no immediate threat.

    This doesn’t mean something is wrong with you.

    It means your nervous system learned to stay ready, and hasn’t yet learned how to fully stand down.

Common Signs of Night-Time Anxiety

Night anxiety doesn\t look the same for everyone, but common experiences include:

  • Racing or looping thoughts

  • A tight chest or shallow breathing

  • A sense of dread without a clear cause

  • Replaying conversations or mistakes

  • Worrying about the future or health

  • Difficulty falling or staying asleep

  • A sudden urge to “fix” everything

Many people also report feeling calmer during the day and confused by how different they feel at night. This shift is a hallmark of anxiety driven by fatigue, stress, and suppressed emotion, rather than external danger.

What Actually Helps Calm Anxiety at Night

Quick fixes rarely work for night-time anxiety. What helps most is signalling safety to both the mind and the body.

Here are evidence-informed approaches that genuinely help:

  1. Regulate the Body First (Not the Thoughts)

    Trying to “think your way” out of anxiety rarely works at night.

    Instead, start with the body:

    - Slow your breathing (longer exhales than inhales)

    - Place a hand on your chest or stomach to activate grounding

    - Use warmth (a blanket, hot water bottle)

    - Gently tense and release muscles

    These techniques activate the parasympathetic nervous system, which tells the body it’s safe to rest.

  2. Externalise Your Thoughts

    An anxious brain hates uncertainty and silence.

    Writing down your thoughts, even briefly, can help move them out of your head and onto paper. This reduces cognitive load and gives the mind permission to rest.

    You’re not solving the problems.

    You’re containing them until morning.

  3. Create Predictability

    The anxious brain feels calmer when it knows what to expect.

    A consistent wind-down routine, even a short one, helps teach the nervous system that night-time equals safety, not threat.

    This might include:

    - Dim lighting

    - Repeating the same sequence before bed

    - Avoiding emotionally activating content late at night

    Predictability builds trust in the body over time.

  4. Stop Fighting the Anxiety

    Ironically, resisting anxiety often strengthens it.

    When you meet anxiety with curiosity rather than panic you reduce its intensity.

    This approach is supported by acceptance-based therapies, which show that allowing anxious sensations to pass naturally reduces their power.

When Night-Time Anxiety is a Sign of Something Deeper

If anxiety at night-time is frequent, intense, or long-standing, it’s often a sign of:

  • Chronic stress or burnout

  • Unprocessed emotions

  • Generalised anxiety

  • Trauma or prolonged hypervigilance

  • Over-reliance on coping during the day

Therapy helps address not just the symptoms but the conditions that keep anxiety active.

How Therapy Helps With Night-Time Anxiety

Therapy provides space to:

  • Understand why your anxiety shows up at night

  • Identify patterns of suppression, over-functioning, or burnout

  • Learn nervous system regulation tools tailored to you

  • Process unresolved stress and emotion safely

  • Build internal safety so your system can rest

Over time, many people find that as their emotional load reduces, their night-time anxiety eases naturally, without forcing sleep or controlling thoughts.

Your System is Overloaded

Anxiety at night isn’t weakness.

It’s not failure.

It’s not a sign you’re “doing life wrong”

It’s a nervous system asking for care, rest, and understanding.

And with the right support, it can settle.

Looking for Support With Anxiety?

At Smart Therapy, our experienced therapists work with anxiety in a compassionate, evidence-informed way, helping you understand your nervous system rather than fight it.

👉 Browse our therapists

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