Hi ya and welcome to COL, there is lots of information on the site regarding breeding from your bitch. If you do a search you will find lots of help and SENSIBLE advice.
If you are definete about breeding from your bitch after reading all the onsite information, I would think that she would be much happier to stay with her pups than come upstairs for a cosey sleep anyway, bitches are very protective of their pups.
Most breeders I know sleep in the same room as the pups and their bitch in the initial few weeks as so many things can go wrong, like the bitch accidently laying on one of the pups and suffocating it, they prefer to be at hand to prevent things like this. So the sleeping upstairs wont/shouldn't be an issue as you should be there anyway.