separation anxiety puppy

hello pawparent, my 7 month old toy poodle , usually sleeps at night 9pm no cries only sometimes because of separation anxiety. but nowadays he refuses to sleep so had to accompany him outside but still would bark and cries at night. had to let him out for awhile then will fall asleep. sometimes will wake up due to noise in the house. but he ok with staying in the cage while I'm not at home. which is a good thing. but at night won't sleep. #Needadvice