Tanya Keith, who owns the Simply for Giggles baby and kids’ boutique in the trendy East Village, is cashing in on a trend among American couples to delay having children until they’re more financially stable.

Keith and Doug Jotzke are part of that trend. Their daughter, Aviva, was born 3 1/2 years ago when Keith was 30 and seven years after the couple married. “I love being a parent,” said Keith, an interior designer, “but I’m glad I don’t have to sacrifice style for parenthood.”

Keith’s own experience and those of her customers tell her that the longer couples wait to have children, the more discretionary income they have to spend on baby furnishings. Her hunch was confirmed in a CNNMoney.com report last week based on research conducted by Mintel International Group Ltd., which released data showing that consumers spent $445 billion overall on luxury goods in 2005, a 30 percent increase over 2000. Mintel said sales of high-end products for babies grew by about 20 percent in 2005, five times faster than the $24 billion spent on goods for toddlers and preschoolers.

Today, hip parents aren’t limited to the soft blues and pinks and cuddly teddy bears that once defined furnishings in baby’s room. “We don’t do frou-frou – well, maybe one frou,” Keith said, pointing out the store offers conventional furniture to suit the tastes of less-adventuresome parents.

But it’s lines like those from the New York City design house ducduc, whose signature color, a vivid orange, and simple lines contrast sharply with the fussiness of more traditional styles, that are drawing first-time parents in their mid- to late 30s, grandparents and downtown residents into her store in increasing numbers.

Emily Halgren, who lives in Turkey but returned to her family home in Indianola for the birth to her twin daughters, Grace and Claudia, was surprised that the more cosmopolitan styles she had grown accustomed to in Europe were also available in Iowa. “I wanted something chic and modern that would fit my house,” said Halgren, who had been unimpressed by what she’d found before she discovered Simply for Giggles.

The ducduc line is outpacing sales of the previous hot seller, a round crib from All Things Creative available in a variety of motifs, but showcased in Keith’s store with jungle prints. Shannon Barry-Rivas, whose daughter, Mia, is about a month old now, wasn’t sure what she was looking for, but when she saw the round crib, she knew it would complement the décor of the home she shares with her husband, Manuel Rivas.

“Tanya’s stuff is much more urban, interesting and progressive,” Barry-Rivas said. “It definitely fills a gap in the market.”