Dr. W. Christopher Winter, a sleep expert at Charlottesville Neurology and Sleep Medicine in Virginia, said some patients experience poor sleep because they grapple with dust mite allergies, according to Today.

While many people welcome spring’s longer, sunnier days, allergy sufferers are usually not as receptive to the season. After all, watery eyes make it a little harder to enjoy the beautiful blooming flowers.

Even those with dust mite allergies — who experience symptoms all year — might notice a surge in runny noses, itchy eyes and sneezing as the weather heats up. That’s because dust mites thrive in bedding and clothes, and flourish when the humidity increases.