Don't do it! It isn't sanitary!
It's harder on you
If your baby is very young, you may use the basket for sleeping purposes. Berths are wide and long and you can keep the baby, basket and all, with you at night. Change and feed the baby in the berth each morning before getting him up.
Put the older child in the half of the berth next to the window, carefully padding the window sill and window with a pillow to prevent head bumping and in winter to keep the youngster warm.
Carry along a waterproof sheet to give the porter when he makes up the berth. If the child is under 4, this is a wise precaution even though he may be perfectly trained at home.
Entertaining the young child.
Little children get tired on a long trip, and who can blame them? You can keep them entertained if you take along a few carefully selected toys: Colored crayons, pencils, tablets, a favorite doll, and story books. A familiar toy should be included, as new ones are not so comforting.