You may notice your dust mite allergy feels worse in certain seasons. That’s not your imagination! temperature, humidity and bedding materials all influence dust mite growth and allergen levels.
Here’s how each season affects symptoms and what you can do to stay comfortable year-round.
Dust Mite Activity in Summer
Humidity fuels growth
Summer humidity allows dust mites to reproduce quickly, especially in bedding where moisture from sweat collects.
Sweat increases allergen buildup
Night sweating can double the amount of moisture in pillows and mattresses.
How to reduce summer mite growth
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Switch to breathable cotton or bamboo
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Wash bedding weekly
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Use a dehumidifier on humid nights
Dust Mite Activity in Winter
Heating systems reduce humidity — but not always mites
Warm indoor temperatures keep dust mites alive, even with lower humidity.
More time indoors = more exposure
Closed windows reduce ventilation and trap allergens inside.
Winter bedding can trap allergens
Heavy quilts, wool and fleece retain warmth AND moisture, allowing mites to thrive between layers.
Seasonal Bedding Adjustments
Best summer bedding
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Bamboo or cotton sheets
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Lightweight quilts
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Breathable protectors
Best winter bedding
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Washable layers
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Breathable wool options
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Protectors to reduce allergen transfer
Whether summer or winter, protectors remain essential.
Seasonal Bedroom Maintenance Checklist
Summer checklist
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Wash sheets weekly
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Reduce humidity
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Increase nighttime ventilation
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Use lighter bedding
Winter checklist
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Vacuum mattress and floors
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Wash heavy quilts often
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Keep room well ventilated
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Monitor indoor humidity
Final Thoughts
Seasonal changes play a big role in dust mite allergies — but with the right bedding strategy, you can enjoy better sleep and fewer morning symptoms all year round.
Explore our full range of Mattress, Pillow & Quilt Protectors and start sleeping allergy-free.