Boynton is back! Joining "Barnyard Dance! "and "Birthday Monsters!," here is "Pajama Time! "a good-night book with the irrepressible language, the inimitable illustrations, the irresistible cast of characters only Sandra Boynton could create. A jump-roping chicken and a pig on a swing. A Scottie in plaid pajamas and an elephant in a fuzzy one-piece with feet. And in sing-along nuttiness reminiscent of "Barnyard Dance!," it's time to head to bed-to the beat: Pajammy to the left. Pajammy to the right. Jamma jamma jamma jamma P!J! Everybody's wearing them for dancing tonight. Jamma jamma jamma jamma P!J!