When you lay on your chest and it feels hard to get air in, that could be from anxiety. Anxiety also makes it difficult for people to sleep well at night.  You can learn how to control your breathing when talking about it with them and other ways of calming down too if they know about it. Try doing things before going to bed like making a routine so that every time before sleep you will make sure that you get into bed more easily also practice good habits around sleep like not watching any screens an hour before bedtime because they keep awake longer which means fewer hours spent resting. If these symptoms stay or get worse then maybe it's time to see the doctor and tell them what’s been happening.