Mrs. Bear is to baby-sit for the little Grizzly-Bears, but since her own baby is wakeful she sends Mr. Bear instead. As he bumbles through bathing, rocking, and feeding, the Grizzly-Bear baby's perceptive older sibs finger him as an imposter; and he is incompetent, because at home Mrs. Bear does these chores. Only when the bear children get into mischief does Mr. Bear roar, dispatch them to bed, and finally get the baby to sleep. When the parents return, the mother is impressed—``I always let my husband take care of [bedtime]''—and Mr. Bear goes home to relieve his wife of ``his'' still-wailing cub and sing her to sleep. In Gliori's appealing illustrations, the roly-poly bears are cuddly and concerned and their enveloping tree-homes have a cozy intimacy; and children will enjoy deploring Mr. Bear's lack of parenting skills (other than hollering). But the message is out of date. (Picture book. 3-7)