My sons both loved swinging cradles. In fact I actually bought a hammock instead of a crib for the second baby. But if you're not convinced about full-time hammock sleeping (although I would HIGHLY recommend it), how about just for nap times? The Fisher Price Butterfly Garden Cradle Papasan Swing features side to side or front to back swinging motion, along with a sheer canopy, 16 different sounds/lullabies, a butterfly mobile and a detachable play tray. Great for calming a fractious young baby.
