In fashion, yesterday’s matchy, polished looks have given way to a rumpled, eccentric style driven by wearing your personality, not your labels, on your sleeve. Nesters are doing the same thing, blending wild color schemes with flea market finds and Ikea pieces with family antiques. In this brave, well-decorated new world, a formal dining set or showroom-tidy boudoir makes you seem square. Christiane Lemieux, founder of bedding company DwellStudio, writes about this new casual-chic movement in her new book, “Undecorate” ($40, Clarkson-Potter).

Lemieux says she was inspired by the Internet. Specifically, “the multiplicity of styles that are flourishing out there right now, with or without the stamp of approval of some trained professional,” she writes in the coffee-table book’s introduction. “Undecorate” features 20 homes from across the country that illustrate the “undecorate” philosophy, including a modern log cabin in Nashville and a “bric-a-brac-strewn” home in Los Angeles.

Lemieux relies on blogs to inspire her ever-changing pad. “I like the rabbit hole effect where you see a great post, and you find out who these bloggers like as well,” Lemieux says. Here are three of her go-to sites.

Apartment Therapy: The granddaddy of decor blogs, amalgamating everything from green living advice to addictive photo tours of readers’ homes.

Design Sponge: Crafty projects such as DIY headboards, city-by-city houseware shopping guides and tips on furniture makeovers.

Sunday Suppers: Drool-worthy recipes and photos plus dinner-party centerpiece and decor ideas.