Motherhood is full of minor inconveniences (car naps that start just as you find parking, to name one), but the fact that you haven’t worked out since you became a mom? Unconscionable.

Local mother-of-two Rachel Blyth not only feels your pain, she designed her neighborhood exercise studio, CardioTone, to lessen it. The Noe Valley hotspot offers quality child care, a soundproof nap and nursing room for newbies, and a program for moms packed with core strength-building, fat-burning workouts. Plus, there are dance and movement classes for kids over 2 (ballet, hip-hop, belly dance).

Best part: Classes run a perfect 45 minutes. So you’ll be back in the stroller or car in less than an hour — and that’s a major convenience.

CardioTone, 3813 24th Street, at Church Street. View and register for classes and child care online at cardio-tone.com.

ROCK
Justin Roberts and the Not Ready for Naptime Players
What: The troubadour of kiddie pop brings his catchy tunes to Duboce Triangle.

Why: Everyone sings his praises and sings along.

When: Sat., 11 a.m.

Where: Swedish American Hall, 2170 Market St., b/t Church & Sanchez Sts. (415-861-5016). Tickets online at cafedunord.com. Individual tickets, $15; family four-pack, $50; babes in arms, free.

ROLL
The Bay Area Girls Rock Camp Showcase
What: Sixteen girl bands debut original songs at a rock camp finale.
Why: Ladies gaga.
When: Sat., 1:30 p.m. (shows start at 2 p.m.).
Where: Oakland Metro Operahouse, 630 3rd St., b/t Martin Luther King Jr. Way & Jefferson St., Oakland. Info at 510-394-8647. Tickets online at bayareagirlsrockcamp.org or at the door, $10.

STOCK UP
Babes & Babies Shopping Event
What: A pop-up extravaganza with 50+ indie designers and new mom resources, plus raffle prizes and gift bags for the first 300 families.
Why: You parent with style.
When: Sun., 9 a.m.-2 p.m.
Where: Jewish Community Center, 3200 California St., b/t Presidio Ave. & Walnut St. (415-292-1200). Tickets online at appelandfrank.com or at the door, $5.

Photo: Courtesy of CardioTone