Caring for a Dog and Her Puppies?

My Shih Tzu has 5, 2 week old puppies. The last couple of nights she wanders from the room where the puppies are to our room and cries. We pick her up and she will sleep for a short period and cry to go back to the puppies. She's been doing this all night and I'm exhausted. She is a really good mom and feeds them and takes care of them and she's eating and drinking well. She always slept with us so I'm thinking she misses us maybe. What can I do to get some sleep?

By Peggy Mac