Written by Lisa Edmondson – BHsNursing, Masters in Health Coaching, PGrDipPublic Health, PGDipEdu
Up to 80% of people with thyroid conditions struggle with sleep. Fatigue, broken nights, and waking up unrefreshed are so common they’re often accepted as “just part of having a thyroid problem.”
But here’s the part many people miss: it’s not just how long you sleep — it’s how well you sleep.
Research shows that 6.5–7 hours of high‑quality sleep can improve thyroid function by up to 22%. That’s significant. And it means that instead of stressing about hitting eight hours every night, a smarter approach is to optimise the quality of the sleep you are already getting.
Below are five evidence‑informed strategies that can dramatically improve sleep quality for people with thyroid dysfunction.
1. Gently tape your mouth at night
Mouth breathing during sleep increases energy expenditure, dries the airways, and reduces oxygen efficiency. Nasal breathing does the opposite.
Lightly taping the mouth closed (using a small piece of surgical tape) encourages nasal breathing, where air is filtered, warmed, and humidified. This allows the body to extract more oxygen per breath, reducing overnight stress on the nervous system.
Many people notice improved sleep quality within the first night, with studies suggesting up to a 20% improvement in sleep efficiency.
How to do it safely:
- Use a small strip (about 3cm) of gentle surgical tape
- Tape vertically or with a small centre gap if preferred
- Avoid if you have untreated sleep apnoea or severe nasal obstruction
If nasal breathing is difficult, combine this with strategy #4 below.
2. Use the 4‑7‑8 breathing technique before sleep
Breathing is one of the fastest ways to change physiology.
The 4‑7‑8 breathing technique activates alpha brain waves and shifts the nervous system toward rest and repair — the state required for sleep onset.
Many people fall asleep within minutes using this method.
How it works:
- Inhale for a count of 4
- Hold for a count of 7
- Exhale for a count of 8
The counting does not need to be exact seconds — choose a comfortable rhythm.
Note: This is different from box breathing. Box breathing is best for anxiety and stress during the day, while 4‑7‑8 is ideal for falling asleep quickly.
3. Choose a thyroid‑supportive pillow
Neck position matters more than most people realise.
A poorly supportive pillow can create tension in the neck muscles, restricting blood flow and lymphatic drainage around the thyroid gland. Over time, this may contribute to discomfort, congestion, and disrupted sleep.
A supportive pillow should:
- Keep the neck in neutral alignment
- Maintain an open airway
- Reduce muscular tension overnight
Medium firmness tends to work best for thyroid patients, particularly when the pillow allows for adjustability based on sleep position.
4. Use a nasal strip during sleep
Nasal strips mechanically widen the nasal passages, reducing airflow resistance by 20–30%.
This makes breathing easier and less energy‑intensive, especially during deeper stages of sleep.
Nasal strips are particularly helpful for:
- People with narrow nasal anatomy
- Chronic congestion
- Snoring or mouth breathing
They pair extremely well with mouth taping and are one of the most cost‑effective tools available for improving sleep quality in thyroid patients.
5. Take sucrosomial magnesium before bed
Magnesium plays a critical role in muscle relaxation, nervous system regulation, and sleep quality.
Sucrosomial magnesium is a highly absorbable form that enters the bloodstream efficiently, making it especially useful when taken right before bed.
Benefits include:
- Faster sleep onset
- Deeper, more restorative sleep
- Reduced muscle tension
- Support for thyroid hormone conversion
A typical dose is 100–200 mg before bed. Some people also benefit from combining this with ozonated magnesium for digestive support.
The takeaway
If thyroid‑related insomnia is preventing you from feeling restored, the solution isn’t always more hours in bed.
By focusing on sleep quality, these five strategies can help your body recover more effectively overnight — supporting energy, hormone balance, and overall wellbeing.
If you think your thyroid is over or under active book a Thyroflex assessment today