Allergy and sleep problems

Almost everyone knows the feeling: a runny nose, itchy eyes, and sleep is nearly impossible. Especially during pollen season, millions of people suffer not only during the day but also at night. But what exactly happens in the body when allergies disrupt sleep? And what can be done about it?

Table of contents

1. What happens in the body during an allergic reaction?
2. How allergies affect sleep
3. Poor sleep makes allergies worse – a vicious cycle.
4. Particularly stressful: Allergies in children and sleep
5. House dust allergy – the underestimated nighttime problem
6. What helps? Tips for better sleep despite allergies
7. When to see a doctor.

8. Conclusion

1. What happens in the body during an allergic reaction?

Allergies develop when the immune system mistakenly identifies harmless substances – such as pollen, pet dander, or dust mites – as a threat. Upon contact with the trigger, the so-called allergen, the body releases histamine. Histamine is a messenger substance that, among other things:

• causes the mucous membranes to swell
• stimulates nasal production
• triggers itching and sneezing
• It stimulates inflammatory reactions throughout the body.

All these reactions are already stressful during the day – at night they become a real sleep thief.

2. How allergies affect sleep

Allergy symptoms and good sleep rarely go hand in hand. The most common problems are:

A blocked or runny nose forces sufferers to breathe through their mouths. This leads to a dry mouth, snoring, and often restless sleep. Those who breathe through their mouths generally sleep less deeply.

Furthermore, chronic nasale Inflammation caused by allergies can lead to the development of sleep apnea – a serious condition in which breathing briefly stops during sleep. Those affected often wake up without consciously realizing it.

Histamine itself also has a stimulating effect on the brain. It promotes alertness – exactly the opposite of what you need at night.

3. Poor sleep makes allergies worse – a vicious cycle.

What many people don't know: The relationship between allergies and sleep is not a one-way street. Poor sleep weakens the immune system and can actually intensify allergic reactions. Studies show that sleep deprivation increases the release of pro-inflammatory messenger substances – which makes symptoms even more severe the next day.

People who sleep poorly are also more sensitive to allergens. This means that even small amounts of pollen or mites are enough to trigger a stronger reaction. A real vicious cycle.

4. Particularly stressful: Allergies in children and sleep

Children are particularly susceptible to allergy-related sleep problems. Because they are in a crucial developmental phase, deep, restful sleep is essential for growth and learning ability. Children with allergies and sleep disturbances are more likely to exhibit:

• Concentration problems at school
• Irritability and mood swings
• Slowed physical development in severe cases

Parents who notice that their child sleeps regularly, snores, or wakes up exhausted in the morning should have this checked by a doctor.

5. House dust allergy – the underestimated nighttime problem

While pollen allergy sufferers are mainly affected during the spring months, house dust mite allergy sufferers are affected all year round – and especially at night.Because house dust mites love exactly the places where we sleep: mattresses, pillows and duvets.

The warmth and moisture our bodies produce while we sleep create ideal living conditions for dust mites. Their excrement is the actual trigger for allergies. The result: Sufferers start the night relaxed – and wake up in the morning with watery eyes and a blocked nose.

6. What helps? Tips for better sleep despite allergies

There are some proven measures that can noticeably improve sleep:

Mite-proof mattress and pillow covers – so-called encasings – keep dust mites out. Bedding should be washed regularly at a minimum of 60 degrees Celsius.

For those with pollen allergies, it is recommended to keep windows closed in the evenings, as the pollen concentration in the air is often highest at that time. Anyone who spends time outdoors during the day should change their hair and clothes before going to bed.

Antihistamines can help relieve the symptoms. Newer preparations cause less drowsiness than older generations – however, which one is right for you should be discussed with a doctor.

An air purifier with a HEPA filter in the bedroom can significantly reduce the concentration of pollen and other allergens in the room air.

7. When to see a doctor?

Occasional sleep problems due to allergies are annoying, but usually harmless. A doctor's visit is advisable if:

• sleep is permanently and severely impaired
• pronounced fatigue or concentration problems exist during the day
• Snoring and breathing pauses occur
• Allergy medications no longer provide sufficient relief

In such cases, allergy testing and, if necessary, specific immunotherapy (hyposensitization) can be considered – the only treatment that combats the cause in the long term, not just the symptoms.

8. Conclusion

• Allergies and sleep worsen each other.

• Symptoms such as a blocked nose and histamine disrupt sleep.

• Lack of sleep can worsen allergic reactions.

• Measures such as encasings and appropriate medication can improve sleep.