In the early hours of the morning everyone’s airways become a bit narrower and breathing is slower.
People without asthma don’t notice anything but children with asthma can find it harder to breathe at night.
If they have asthma they are breathing less easily at this time and may wake up with a night time cough and wheeze.
This can be a symptom of poorly controlled asthma but that doesn’t mean that there is always something in your child’s room causing their symptoms. It means that they have been in contact with a background trigger at some point during the day this could be pollens changes in weather, animals, colds etc.