If you live with fibromyalgia or ME/CFS, you’ll know that sleep problems aren’t just about struggling to drift off. You might finally fall asleep at 3am only to wake feeling like you haven’t slept at all. Or you collapse into bed exhausted, yet your body refuses to switch off that frustrating “tired but wired” state that so many of us recognise. The sleep disturbance in these conditions runs deeper than ordinary insomnia, and it’s tangled up with pain, nervous system dysregulation, and the ever-present threat of post-exertional malaise.
Here’s what can make things worse: well-meaning advice designed for otherwise healthy people with insomnia. Standard sleep programmes often encourage restricting time in bed, pushing through daytime tiredness, and increasing activity to “build sleep pressure.” For someone with post-exertional malaise (PEM), following that advice can trigger a crash that sets you back for days or weeks. If you’ve ever felt worse after trying to fix your sleep, you’re not imagining it, and you’re certainly not alone.
In this guide, we’ll walk through a set of PEM-safe sleep tools that work with your body’s limits instead of against them.
For a deeper look at how fibromyalgia affects sleep, see What is fibromyalgia? (and what it isn’t).
This guide takes a different approach. We’ll explore PEM-safe sleep tools that work with your body’s limits rather than against them. You’ll find gentle adaptations from evidence-based insomnia therapies, nervous system calming techniques that don’t require energy you don’t have, and honest information about sleep aids. Nothing here promises a cure, but these supports can make difficult nights a little more manageable.
Key takeaways
- PEM changes the rules: Standard insomnia advice assumes you can “push through” tiredness to build sleep drive. With fibromyalgia and ME/CFS, this approach can trigger crashes and worsen symptoms, so everything here is adapted with that in mind.
- Pacing comes first: Protecting your energy envelope throughout the day is the foundation of better sleep. You can’t optimise nighttime rest if you’re already in energy debt.
- Borrow gently from CBT-I: Cognitive Behavioural Therapy for Insomnia has helpful elements, particularly the cognitive tools and sleep environment work, but its sleep restriction component isn’t safe for people with PEM.
- Low-risk supports exist: Nervous system calming techniques, environment adjustments, and certain supplements may help, though evidence varies and nothing works for everyone.
- Know when to seek help: Persistent sleep problems, suspected sleep disorders, or worsening symptoms warrant a conversation with your GP or specialist.
Why standard insomnia advice can backfire with PEM
Cognitive Behavioural Therapy for Insomnia (CBT-I) is the gold-standard treatment for chronic insomnia in the general population. It works remarkably well for many people, and understanding why helps explain why it can be problematic for us.
Standard CBT-I has four main components. Sleep restriction therapy limits time in bed to match actual sleep time, deliberately inducing mild sleep deprivation to increase “sleep pressure.” Stimulus control asks you to get out of bed after 15-20 minutes of wakefulness and only return when sleepy. Cognitive restructuring addresses unhelpful thoughts about sleep. And sleep hygiene covers the usual advice about caffeine, screens, and bedroom environment.
The conflict lies primarily with sleep restriction and stimulus control. These techniques require you to intentionally build up tiredness and push through daytime sleepiness to consolidate sleep. For someone without PEM, this creates a temporary dip in daytime function that resolves as sleep improves. For someone with ME/CFS or fibromyalgia with PEM, sleep deprivation is a known crash trigger.
The 2021 NICE guideline for ME/CFS (NG206) explicitly warns against any programme based on “fixed incremental increases” in activity, and emphasises that rest is “part of all management strategies.” The guideline recognises that people with ME/CFS need daytime rest periods, the opposite of what strict stimulus control demands. Getting in and out of bed repeatedly when you can’t sleep may itself use energy that triggers symptoms.
This doesn’t mean we should dismiss CBT-I entirely. The cognitive elements addressing anxious thoughts about sleep and reducing the pressure we put on ourselves can be genuinely helpful. The key is knowing what to adapt. We can borrow the gentler tools whilst protecting ourselves from the components that could cause harm. For more on how sleep disruption interacts with symptom flares, see our guide to fibromyalgia sleep flares and PEM.
PEM-safe sleep tools: foundations for better rest
These PEM-safe sleep tools for fibromyalgia and ME/CFS insomnia respect your energy limits whilst creating conditions that make sleep more likely.
Protect your 24-hour energy envelope
The energy envelope is a core concept from ME/CFS management, now reflected in NICE guidelines. It means staying within your available energy rather than spending more than you have. When you exceed your envelope during the day, you’re more likely to be both exhausted and wired by bedtime and more likely to experience PEM that disrupts sleep for days afterward.
Practical pacing for better sleep includes planning rest periods throughout the day rather than saving all your rest for nighttime. It means stopping activities before you feel exhausted, and recognising that cognitive and emotional activities use energy too not just physical ones. On days when you’ve had unavoidable exertion, adjusting expectations rather than trying to “catch up” with extra activity can help protect your sleep.
NICE NG206 recommends agreeing “a sustainable level of activity as the first step, which may mean reducing activity.” This isn’t about being lazy it’s about preventing the boom-and-bust cycles that wreck both daytime function and nighttime rest. Your energy envelope fluctuates, and learning to read your own limits is part of living well with these conditions.
A softer wind-down routine
A consistent evening routine signals to your body that sleep is approaching, but with fibromyalgia or ME/CFS, the routine itself needs to be low energy.
About two hours before bed, begin dimming lights and reducing screen exposure. Blue light suppresses melatonin production by up to 85%, so switching to lamps, candles, or low lighting helps your body’s natural sleep signals emerge. If you need screens, blue light blocking glasses or night mode settings can reduce the impact.
About one hour before bed, settle into a simple sequence of calming activities. This might include listening to gentle music or an audiobook, very light stretching only if tolerated, a warm drink (not caffeine), or simply sitting quietly. The key is consistency; the same activities in roughly the same order help your nervous system recognise the pattern.
Avoid anything stimulating during this window: work tasks, difficult conversations, distressing news, or physically demanding activities. Even seemingly passive activities like watching an intense television drama can activate your stress response. Think “boring and gentle” rather than “engaging and interesting.”
Make the sleep environment kinder
Your bedroom environment can either support or sabotage sleep. Small adjustments can make a meaningful difference, particularly when you’re managing pain alongside insomnia.
Temperature matters more than many people realise. Research suggests 15-19°C is optimal for most people, though fibromyalgia can cause temperature sensitivity in both directions. Aim for neutral, neither too hot nor too cold, with layered bedding you can adjust during the night. Breathable natural fibres help regulate temperature better than synthetic materials.
Darkness supports melatonin production. Blackout curtains, blinds, or a sleep mask can help if light pollution is an issue. If you need to get up during the night, use dim nightlights rather than bright overhead lights to avoid suppressing melatonin.
Sound management might mean white noise to mask disruptive sounds, earplugs for noise sensitivity, or simply ensuring your bedroom is as quiet as possible. Whatever approach you choose, consistency helps, as the same sounds (or silence) each night builds a sleep association.
Bedding for pain deserves careful thought. A mattress that provides pressure relief whilst supporting your spine, pillows appropriate for your sleeping position, and positioning aids like a pillow under the knees for back sleepers can all reduce nighttime pain. Weighted blankets have some evidence for calming the nervous system, though they’re not right for everyone.
Calm pain and symptoms before bed
Managing pain before bed can prevent it from keeping you awake or waking you through the night. If you take pain medication, timing it appropriately (with your prescriber’s guidance) so it’s working when you’re trying to sleep makes sense.
Non-pharmacological options include heat or cold therapy for localised pain, getting into a comfortable position before you settle rather than lying awake shifting, and using relaxation techniques (covered below) that can indirectly reduce pain perception. The goal isn’t eliminating pain for many of us; that’s not realistic, but reducing it enough to let sleep happen.
Borrowing gently from CBT-I without triggering crashes
We’ve established that full CBT-I isn’t appropriate when PEM is a factor. But several elements can be safely adapted.
Cognitive techniques are perhaps the most transferable. Many people with chronic illness develop unhelpful thoughts about sleep: catastrophising about the consequences of a bad night, putting pressure on themselves to fall asleep, or lying awake worrying about symptoms. Working on these thought patterns, perhaps with support from a psychologist familiar with chronic illness, can reduce the mental arousal that keeps us awake.
Sleep environment optimisation translates directly. Creating positive associations between your bedroom and rest, keeping the room dark and cool, removing distracting electronics, and reserving the bed primarily for sleep and rest (not work or screens) are all compatible with pacing.
Gentle stimulus control requires significant modification. Rather than getting out of bed and staying active until sleepy, you might simply roll over and rest without pressure, practice breathing exercises whilst lying down, or do a gentle body scan. The goal shifts from “only associate bed with sleep” to “associate bed with rest and calm” recognising that lying quietly has value even without sleep.
What to avoid: Any fixed schedule that ignores symptom fluctuation. Any instruction to reduce time in bed or push through daytime tiredness.
For more on how sleep disruption interacts with symptom flares, see our guide to fibromyalgia sleep flares and PEM.
Any approach that treats rest as something to eliminate. The 2021 NICE ME/CFS guideline is clear that sleep management should be “personalised” and must “take into account the need for rest in the day.”
If you work with a sleep therapist, explain your condition and PEM clearly. A good practitioner will adapt their approach; one who insists on standard protocols despite your concerns may not be the right fit.
Nervous-system soothing that respects PEM
The “tired but wired” state common in fibromyalgia and ME/CFS reflects genuine nervous system dysregulation. Research shows that people with these conditions often have higher sympathetic (stress) activation even during sleep. Calming the nervous system isn’t just about relaxation, it’s about shifting your physiology toward rest.
Extended exhale breathing is perhaps the most accessible technique. Simply making your out-breath longer than your in-breath activates the parasympathetic (rest and digest) nervous system via the vagus nerve. Try breathing in for 2-4 counts and out for 4-8 counts, whatever feels comfortable. Five minutes of this whilst lying in bed requires minimal energy and can genuinely shift your state. If counting feels effortful, simply focus on a slow, gentle exhale.
Grounding techniques interrupt anxious thought loops by bringing attention to present moment sensation. The 5-4-3-2-1 technique asks you to notice five things you can see (or remember seeing in your room), four you can feel (the weight of blankets, the pillow beneath your head), three you can hear, two you can smell, and one you can taste. This can be done with eyes closed, entirely from bed, and requires no physical effort.
A worry pad by the bed gives racing thoughts somewhere to go. When worries surface, jot them down briefly and promise yourself you’ll address them tomorrow. This simple act of externalising concerns can reduce the mental effort of trying to hold onto them and can break the cycle of rumination that keeps the stress response active.
Self-compassion practice may feel uncomfortable at first, but evidence links self-compassion directly to better sleep. When you notice self-critical thoughts (“Why can’t I just sleep like a normal person?”), try placing a hand on your chest and offering yourself kindness: “This is hard. I’m doing the best I can.” Research shows this kind of supportive self-talk triggers parasympathetic activation and reduces cortisol, the opposite of the stress response that keeps us wired.
The key with all these techniques is gentleness. If any practice feels like effort or creates frustration, it’s not helping. Start with just one approach, practise it consistently for a few weeks, and add more if it’s working without draining you.
What about melatonin, magnesium and other sleep aids?
People with fibromyalgia and ME/CFS often explore supplements and sleep aids, hoping to find something that helps. The evidence is genuinely mixed, and it’s important to approach this area with realistic expectations.
Melatonin has the most promising evidence for fibromyalgia specifically. Several small studies have found improvements in sleep quality, pain, and quality of life. For ME/CFS, the picture is less clear. A 2021 review found insufficient evidence to recommend it. Some research suggests people with fibromyalgia may have altered melatonin production, which could explain why supplementation helps some people. However, melatonin interacts with numerous medications including anticoagulants, antidepressants, and sedatives, and quality varies between products since supplements aren’t tightly regulated.
Magnesium has theoretical benefits; it’s involved in muscle relaxation, nervous system function, and sleep regulation, and some studies have found lower levels in people with fibromyalgia. However, the evidence specifically for sleep improvement is limited. Different forms of magnesium have different absorption and effects, and high doses can cause digestive upset. If you’re considering magnesium, discussing it with your GP or pharmacist is sensible, particularly regarding interactions with other medications.
Other supplements marketed for sleep (valerian, 5-HTP, L-theanine, CBD) have varying and generally weaker evidence. 5-HTP in particular carries significant risks if combined with antidepressants due to the possibility of serotonin syndrome; this combination should be avoided without specialist guidance.
Pharmaceutical sleep aids require careful consideration. The 2021 NICE guideline for chronic primary pain (NG193) notes that opioids and standard hypnotics are not recommended for fibromyalgia. Low-dose amitriptyline is sometimes prescribed for fibromyalgia with sleep disturbance and may help some people, though it comes with side effects. Any medication decision should be made with your prescriber, considering your full picture.
The honest summary: no supplement or medication reliably fixes sleep problems in fibromyalgia or ME/CFS. Some people find some things helpful. Many of us are medication sensitive and need to start any new approach at low levels. Nothing replaces the foundations of pacing, environment, and nervous system support, but these additional tools may offer modest benefit for some people when used cautiously.
When to talk to your GP or specialist
While this guide offers self-help tools, some situations warrant professional input.
Consider speaking to your GP if:
- Your sleep problems persist despite trying these approaches for several weeks
- You suspect an underlying sleep disorder such as sleep apnoea (loud snoring, gasping awake, excessive daytime sleepiness beyond your usual fatigue)
- You have symptoms of restless legs syndrome (uncomfortable leg sensations and urge to move, particularly at night)
- Your sleep difficulties are worsening significantly or affecting your ability to function
- You’re considering prescription sleep medication or have questions about supplements and interactions
- You’re experiencing worsening depression or anxiety alongside sleep problems
Your GP or specialist may offer:
- Assessment for sleep disorders (potentially including referral for sleep studies)
- Review of current medications that might be affecting sleep
- Discussion of medication options appropriate for your conditions
- Referral to a psychologist experienced in chronic illness for adapted CBT-I
- Referral to ME/CFS or pain specialist services
Remember that NICE guidelines emphasise personalised, multimodal approaches. There’s no one-size-fits-all solution, and finding what works often requires patience and professional support.
Key resources and references
- NICE NG206: Myalgic encephalomyelitis/chronic fatigue syndrome – diagnosis and management – the 2021 guideline covering energy management, sleep, and why GET is not recommended
- NICE NG193: Chronic pain in over 16s – guidance on chronic primary pain including fibromyalgia, covering recommended treatments and what to avoid
- NHS: Insomnia – treatment – general information about CBT-I and sleep approaches
- NHS: Sleep and tiredness – practical guidance on sleep hygiene and environment
- NHS: Chronic fatigue syndrome – treatment – overview of ME/CFS management aligned with NICE guidelines
Disclaimer
This article provides general information about sleep and chronic illness for educational purposes only. It is not intended as medical advice and should not replace consultation with your GP, specialist, or other qualified healthcare professional. Everyone’s situation is different; what helps one person may not suit another, and some approaches may not be appropriate for your circumstances. Always discuss new supplements or significant changes to your sleep approach with a healthcare provider, particularly if you take other medications or have additional health conditions. If your symptoms are worsening or you’re concerned, please seek professional support.
Written by Stems From The Gut
This article was written by someone who lives with fibromyalgia, chronic pain, and gut issues. At Stems From The Gut, we believe in plain-English, evidence-aware information that respects the reality of living with chronic conditions—no toxic positivity, no “just push through” attitudes, and no pretending that simple solutions exist for complex problems. We do our best to align with current clinical guidelines whilst acknowledging their limitations. For more about our approach, see our Authors & Medical Stance page.


