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Mental health & neurodiversity

Nightmares treatment

Recurrent nightmares are treatable - imagery rehearsal therapy, trauma-focused approaches and when to seek help.

If you need urgent help

If you are in crisis, having thoughts of ending your life, or have seriously harmed yourself, this page is not the right route: call 999 or go to A&E now. For urgent but non-life-threatening mental health support, call NHS 111 and select the mental health option, or contact Samaritans free on 116 123, any time, day or night.

Key points

The essentials at a glance.

What to look out for, when to seek help, who assesses and treats it, and the options that work.

  • 01

    Frequent nightmares that disturb sleep or haunt the day are a treatable clinical problem, not something to endure.

  • 02

    Common contexts include PTSD, stress, depression, some medications, and nightmare disorder in its own right.

  • 03

    Imagery rehearsal therapy - rescripting the nightmare while awake and rehearsing the new version - has good evidence.

  • 04

    Trauma-related nightmares usually respond to trauma-focused therapy for the underlying PTSD.

  • 05

    A psychologist or sleep specialist can assess and treat; alcohol close to bedtime commonly worsens dream disturbance.

Understanding it

What it is, and how to get help.

In plain English - what is going on, and the assessment and treatment routes available in the UK.

Nightmares become a disorder when they recur, wreck sleep and make bedtime itself something to dread. They are especially common after trauma, but chronic nightmares can also persist as a learned pattern long after the original stressor has passed.

Imagery rehearsal therapy treats the nightmare script directly and works even without addressing deeper causes, while trauma-focused therapy resolves nightmares that stem from PTSD. NHS talking-therapy waits vary widely and can be lengthy, particularly for specialist or longer-term therapy. Privately, an initial appointment with a psychologist or accredited therapist can typically be arranged within around two weeks.

A quiet reminder

This guide is for information, not medical advice.

Your GP or mental health professional knows your history and can tell you which parts apply to you. If in doubt, speak to them.

Published 2026-09-27 · Next review 2027-09-27

Frequently asked

Common questions about Nightmares treatment.

Quick, plain-English answers to what people ask us most.

  • What treatments are available for frequent nightmares?

    Effective treatments include image rehearsal therapy, a specific psychological technique where the nightmare is rewritten with a different, less distressing ending and rehearsed while awake, alongside good sleep hygiene and addressing any underlying anxiety or trauma.

  • Why do nightmares happen?

    Nightmares can result from stress, anxiety, trauma, certain medications, sleep deprivation, or occur without any clear trigger, often reflecting the brain's processing of emotional experiences during REM sleep.

  • Is nightmare treatment usually needed, or do they resolve on their own?

    Occasional nightmares usually don't need specific treatment and often resolve as stress resolves, but frequent, distressing nightmares that significantly affect sleep and daytime functioning benefit from targeted treatment.

  • How effective is image rehearsal therapy for nightmares?

    Image rehearsal therapy has good evidence for reducing nightmare frequency and severity, particularly for chronic nightmares and those related to PTSD, typically delivered over a few structured sessions with a trained therapist.

  • Are medications used to treat nightmares?

    Medication is sometimes used, particularly for nightmares related to PTSD, though psychological approaches like image rehearsal therapy are often preferred as first-line treatment given good evidence and fewer side effects.

  • When should I seek treatment for nightmares, and how quickly can this be arranged privately?

    Seek treatment if nightmares are frequent, distressing, or affecting your sleep and daily life. A private sleep specialist or psychologist can typically arrange assessment and start treatment within about two weeks.