When I picked up my "baby" the breeder also gave me a birthday bag, in it were chew things- many different kinds, lots of small play toys, two stuff animals one large bear and one small elephant, a dirty baby blanket (was in the pen with mother and littermates) her shots records and a birth announcement with baby picture. She told me to let her sleep with the bear and the blanket for the first few nights and then wash the blanket and that will be here blanket. Well Macy never cried at night for her birth mom- it was great she slept from 10 until 5 am on her first night home. She is 13 weeks old and still doesn't sleep past 5. Which is way too early for me, so I am hoping she grows out of that earlier riser stage.
Good luck and your wait will be worth it- just get your sleep now!