Night asthma effects over 75% of asthma sufferers. Symptoms may be mild during the day but at night worsen. This is a major problem because it effects your quality of sleep and can negatively impact other aspects of your health.
So how can you prevent night asthma? Well, it is generally impossible to prevent every single flare up of night asthma because of several factors. Just know that by taking some steps you can drastically reduce the severity of your symptoms.
First off, make sure that your bedroom is as allergen free as you can. Try not to have carpet, use plastic blinds instead of drapes and try to keep pets out of your room. Keep your sinuses clear by treating any allergies with a once daily pill. In the winter use a humidifier to keep the air moist and warm. Finally, see a doctor if you feel that you have some form of sleep apnea. This could be contributing to the night asthma and conversely, the asthma could be causing the sleep apnea.