Hill House Ellie Nap Dress in Navy Tartan XS extra small. The Ellie is an A-line Nap Dress with ​elasticated smocking, ruffled shoulders and a tiered midi skirt. This versatile bestseller is a go-to for outings and naps alike. Meet the Nap Dress™. It’s our signature garment; soft, comfortable, and pretty enough to wear all day and night. Elastic chest. MIDI to maxi length. Great for the holidays. Can be worn on its own or layered. Navy blue, red, and green. 100% cotton.