House dust mites in your bedding or mattress, and pet dander, dust particles or mould in your bedroom can all irritate your airways and make you more prone to nocturnal asthma. This is because cold air is dry – loss of moisture and heat in the airways can trigger an asthma attack. Breathing in cold air. A cool room is better for sleep but your night-time asthma might be worse in winter or if you sleep in an air-conditioned room. Meanwhile, sleeping flat on your back can cause mucus in your nose to drip to the back of your throat and trigger a night-time cough. Sleeping position. Certain sleeping positions, such as lying on your side or your front, can constrict your lungs, potentially making nocturnal asthma symptoms worse.Triggers for asthma attacks at night are: It is not known exactly why asthma is worse at night for some people, although there are certain factors that can make asthma attacks at night more likely. The exact reason why asthma might be worse for some people at night is unclear although certain factors are thought to play a role and there are things you can do to minimise your risk. More asthma-related deaths and severe attacks happen at night, so nocturnal asthma is a serious condition that requires preventative steps and effective treatment. This can have a significant impact on quality of life. Sufferers can be woken up several times, leading to tiredness, poor concentration and difficulty controlling asthma symptoms during the day, in both adults and children. Symptoms of nocturnal asthma include coughing fits, tightness in the chest, wheezing and shortness of breath just before and during sleep. More than five million people in the UK have asthma and night-time asthma, also known as nocturnal asthma, is thought to affect up to three quarters of them. If you have asthma, you may notice that your symptoms are worse at night – you are not alone.
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