Often Milk Snakes come in the house looking for baby mice, and they can look very much like a Copperhead, as can Corn Snakes. Please see < a href="http://www.herpsofnc.org/herps_of_NC/snakes/Elagut/Ela_gut.html"> Corn Snake, Milk Snake (look at the Milk Snake - Milk and Scarlet King are thought by some to be the same species), and even Northern Water Snake . Now, the Copperhead; remember that baby Copperheads have a neon yellow tail; Copperhead . Since you give no locality (with reptile ID, one really needs to), I have used links from my home state of NC.
Now, mom could still be around if it is a Copperhead, but unlikely; she bears babies alive in August or September, and then goes off to hibernate. The babies have to find their first meal, and then follow her to the denning site. Any who do not succeed perish.
It is unlikely she had babies in your house; the little snake probably came in looking for a warm place or for food.
: Last night we discovered a baby
: copperhead in our bedroom. My husband
: picked it up and put outside. My
: concern is should we be looking for
: mother snake or siblings and Joe did it
: get in the house? We have a 6 yr old
: who is wheelchair bound and I am very
The Appalachian Naturalist