Modest Style · October 30, 2026 · by Rose · 5 min read

Hill House Home Nap Dress Size Guide (How to Find Your Fit)

Woman in a cream floral smocked midi dress layered over a fitted ivory long-sleeve turtleneck, standing in a sunlit room

The Nap Dress is one of those pieces that shows up everywhere once you notice it. It's soft, it's pretty, and it's easy to wear all day. But ordering online can feel like a guess, especially when the bodice is smocked and the sizes run from XXXS all the way to XXXXL.

Here's how I'd figure out the right size before ordering, plus how I'd wear one so it works for a modest wardrobe.

How Nap Dress sizing works

Hill House Home describes the Nap Dress as its signature garment, made with an elasticated smocked bodice they call Nap Smocking. That smocking is the reason sizing feels different from a regular dress. The bodice stretches to fit, so the fit at the bust and waist has some give, while the skirt below is loose and flowy.

On the Ellie Nap Dress page, the store's own note says: if you're in between sizes, size down. That makes sense with a stretchy bodice. A smaller size still stretches over the bust, and it stays closer to the body instead of looking loose.

One thing to know: each style has its own chart. When I looked at the Ellie page, it listed several different size charts for different dresses, and the numbers were not the same. So always open the size guide on the exact dress you want instead of reusing a chart from another style.

How to measure yourself

Hill House recommends taking your measurements with a soft tape measure, and asking someone to help if you need to. Here's the simple way to do it:

Write the numbers down in inches, since that's how the charts are listed.

Soft tape measure, notebook and a folded blush smocked dress laid out on a linen surface for measuring a dress size

The Ellie Nap Dress size chart

This is the chart shown on Hill House Home's Ellie Nap Dress page (measurements in inches):

Again, this chart is for the Ellie. Other Nap Dress styles on the site have their own charts, and some run with more room in the bust, so double-check before you order a different style.

If your bust and waist fall in different sizes

This happens all the time. Here's how I'd decide:

Woman in a terracotta smocked tiered maxi dress with a fitted cream long-sleeve top underneath and a camel cardigan

Length and height

The Ellie chart lists lengths from about 44 ½ inches in XXXS to just under 50 inches in XXXXL. Where that lands on you depends on your height. One petite reviewer said the Ellie just hit her ankles, so the shorter you are, the longer it will look on you.

For a modest look, a longer hem is a plus. If you're tall and want more length, check the listed length on the maxi styles, which are made to fall longer.

How to wear a Nap Dress modestly

Many Nap Dresses have short puffed or ruffled sleeves and a square or open neckline. That's easy to work with. A few simple layers make it fully covered and still look intentional.

When you layer underneath, keep the base top thin and fitted so the smocked bodice still sits smoothly. This is another reason the size-down advice works well: a slightly closer fit keeps the layers neat.

Quick checklist before you order

  1. Measure your bust and waist in inches.
  2. Open the size guide on the exact style you want.
  3. Match your bust first, then check the waist.
  4. In between sizes? Size down on the Ellie, unless reviews for that style say otherwise.
  5. Compare the listed length to your own shoulder-to-hem measurement.
  6. Plan your layers so the fit still works with a top underneath.

My take

The Nap Dress is a lovely base for modest dressing once you know your size. Measure once, read the chart for the exact style, and lean toward the smaller size when you're between two. Then add a fitted long-sleeve layer and you have an outfit that feels cozy, pretty and completely you.

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Written by Rose
Rose shares modest, elegant outfit ideas and the pieces she loves. More about Rose

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