One sleepyhead’s lullaby (crashing waves from a sound machine) is another child’s nightmare.

Tune into something more musically inclined with a Woon iDoll. The plush bedtime companions are what happens when a Sleep Sheep meets an Uglydoll meets your iPod.

Just customize a soothing playlist on your MP3 player (we found a combination of ’80s lite rock and John Denver worked like Ambien), set the volume (remember, it will be muffled by the doll), slip it into the side pocket, and use the Velcro loop to attach it to the crib, car seat, or stroller.

Though the little doll isn’t flawless (it took us awhile to get our iPod in place without triggering different playlists), it certainly mirrors our parenting sensibility better than any fuzzy animal with womb noises mysteriously emanating from its belly.

In other words, it’s anything but a snore.

Available online at chloeinstyle.com, $50. To see styles, go to woonkids.com.

COOL OFF
Our Special Harbor Spray Ground
What: With a water maze and splashy interactive features, it’s the newest place to beat the heat.
Why: The crab boat and a skipjack drive home the Chesapeake Bay theme.
When: Thru Sept. 5. Thurs.-Tues., 11 a.m.-7 p.m.; Wed. 11 a.m.-5 p.m.
Where: Lee District Park, Rose Hill Dr., at Telegraph Rd., Franconia (703-922-9841). Admission is free.

TWIST
Tie-Dye T-Shirt Workshop
What: Dip a tee into a rainbow of vibrant hues.
Why: It’s right up your flower child’s alley.
When: Sat., 1 p.m.
Where: College Park Aviation Museum, 1985 Corporal Frank Scott Dr., College Park. Registration (required by Tues.) to 301-864-6029. Museum admission and workshop, $7.

SLITHER
Measuring of the Big Snakes
What: Watch as Catoctin Wildlife Preserve and Zoo unfurls some of its lengthiest residents.
Why: We predict some really long reptiles.
When: Sat., 1 p.m.
Where: 13019 Catoctin Furnace Rd., Thurmont (301-271-3180). Adults and teens, $17; children, $10; under 3, free.

Photo: Courtesy of Woon