Choose an oversized rug.
"I had smaller area rugs and they were a bad investment," says H&H senior design editor Sally Armstrong. "They were constantly bunching up, it drove me nuts. It's better to do wall-to-wall carpet or a pick a really generous sized rug." The bedroom (shown) of Ali Yaphe's son Charlie has a sophisticated neutral palette that will grow with him, and a rug is more comfortable to play on than a bare floor.
Find more inspiration in our photo gallery of Editors' Favourite Kids' Rooms.