Nothing clears a room of baby-adoring adults faster than a dirty nappy. “Not it!”

If only they knew how easy Lala’s Pequeños knottie sleeper makes things.

The extra-long unisex nightgown has two strips that tie into a knot to keep baby’s toes from catching a chill. When it’s time for a clean diaper, just untie, do your work, and retie.

Made from bamboo and hemp, with easy-on/easy-off necklines, the all-natural sleepers are perfect for newborns whose primary responsibilities include snoozing, eating, and pooping. Parents who find themselves on diaper duty around the clock won’t turn their noses up at them either.

Change is good.

Available online at lalaspequenos.bigcartel.com, $44.

SPLASH
Swan Boats
What: Go for a leisurely trip on the Delaware River.
Why: Foot pedals allow small sailors to man the ship.
When: Thru Sept. 11. Fri., 4-8 p.m.; Sat. & Sun., noon-8 p.m.
Where: Penn’s Landing Marina, Columbus Blvd., at Dock St. For info, call 215-545-4570 ext. 101. $10 per boat.

STROLL
Guided Nature Hikes
What: Meander along Briar Bush Nature Center’s trails with a naturalist.
Why: You never know what woodland creatures you’ll spot along the way.
When: Sat., 10 a.m. (Also Aug. 13 & 27.)
Where: 1212 Edge Hill Rd., Abington (215-887-6603). Admission is free.

HARMONIZE
String Band Music Under the Stars
What: Munch soft pretzels and hot dogs and listen to the Mummers play tunes.
Why: Learn a few dance steps.
When: Thru Sept. 27. Tues., 8 p.m.
Where: Mummers Museum, 1100 S. Second St. (215-336-3050). Admission is free.

Photo: Courtesy of Lala’s Pequeños