If the Obama girls are anything like I was at their ages, they want cool bedrooms where they can hide from their parents, have private conversations without siblings listening in and host sleepovers for every Chicago friend they ever had and all their new ones, too.

Because we green types like to hang all our hopes for eco redemption on the children of the world, we naturally decided that their rooms should also symbolize all our collective hopes for a greener future. So, herewith are our suggestions for eco-minded, sleepover-friendly bedrooms.

First, the walls. Most eco-friendly paints have muted colors, tones and pastels, because the more color you add, the higher the level of volatile organic compounds and fumes. Benjamin Moore has developed a proprietary formula for waterborne colors, used in its Natura and Aura lines, that add absolutely no VOCs to a paint, allowing them to create a broad spectrum of colors from pretty pinks (which would match the cute Happy Critters organic cotton bedroom set from Pottery Barn Kids (http://www.potterybarnkids.com) to older-sister-appropriate purples and greens that would match this PBK reversible organic cotton quilt. Paints start at $49.99/gallon, and the PBK duvets are $129 and $125 respectively.