Just reading your past posts it sounds like you just got your pups and they are fairly young.. did you get them from a shelter? Or a place where there were a large amount of dogs?
It may be Kennel Cough which sometimes get worse at night time.. its sometimes followed by a gagging sound like they are trying to get up phlem. You will need to get them both to the vet as it is very contagious. After you go the the vet make sure you wash all the dog bowls bedding and leashes.. IN very hot water to remove the bacteria.
Id get them to the vet sooner then later as it can get very bad!!
Kennel Cough (symptoms and treatment)