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Little Sleepies
Here’s how Little Sleepies fits your child compared to other brands you might be considering, so you know before it’s in your cart.
What size is (and isn’t) like Little Sleepies at other brands?
Find your child’s Little Sleepies size on the left. Twins wear the same number the same way — your size carries straight over. Strangers use the same number but cut it shorter or longer, so don’t trust the label alone.
| Little Sleepies | Size twinssame number fits the same | Size strangerssame number, different cut |
|---|---|---|
| Newborn18–21" | JoJo Maman Bébé↑ longerMini Boden↑ longer | |
| 0-3m21–23" | — | No same-size match at other brands |
| 6-12m27–31" | — | No same-size match at other brands |
| 3-6m23–27" | — | No same-size match at other brands |
| 12-18m31–33" | — | No same-size match at other brands |
| 18-24m33–34.5" | — | No same-size match at other brands |
| 2T33–36" | ||
| 3T36–39" | ||
| 4T39–42" | Tommy Hilfiger Kids↓ shorterMagnetic Me↓ shorter | |
| 542–45" | Il Gufo↓ shorterMagnetic Me↓ shorter | |
| 645–48" | Bonpoint↓ shorterIl Gufo↓ shorterColumbia Kids↑ longerConverse Kids↓ shorterU.S. Polo Assn.↓ shorterH&M Kids↓ shorter+3 more | |
| 748–50" | Converse Kids↓ shorterLevi's Kids↑ longerGarnet Hill↑ longerOld Navy↑ longerNext Kids↓ shorterThe North Face Kids↑ longer | |
| 850–52" | Il Gufo↓ shorterGarnet Hill↑ longerOld Navy↑ longerBonpoint↓ shorterConverse Kids↑ longerLevi's Kids↑ longer+8 more | |
| 1052–57" | Il Gufo↓ shorterColumbia Kids↑ longerConverse Kids↑ longerLacoste Kids↓ shorterLevi's Kids↑ longerBonpoint↓ shorter |
In short
Where the number just works. At 0-3m, 6-12m, 3-6m, 12-18m, 18-24m, Little Sleepies lines up with every brand we track — the size carries straight over.
Where labels drift. The exceptions are the “strangers” above — e.g. at size 5, Il Gufo, Magnetic Me cut the same number differently. Check those before you trust the label.
Bottom line: for most sizes, a Little Sleepies number is a safe bet elsewhere — measure once, then double-check only the handful of “stranger” brands above.
Curious about a size that isn’t your child’s here? Every size, compared across every brand, lives here: Browse all size comparisons →
Specialty & inclusive fits
Which trimmer, roomier, or adaptive cuts Little Sleepies publishes alongside its standard sizes.
Should you buy Little Sleepies?
Consider it if…
- Its sizing spans a wide range, so one brand can cover several years.
- It’s easy to buy — available on Amazon as well as the brand’s own site.
Think twice if…
- Little Sleepies publishes limited body measurements, so fit is judged mainly on height.
- It sits at the premium end on price.
Skip the cross-referencing — let Little & Youth do it.
Enter your child’s measurements once. We’ll show their Little Sleepies size and their size at 100+ other brands, each from that brand’s own chart.
Find my child’s size →Shop Little Sleepies ↗On Amazon ↗A few things parents ask that the chart won’t tell you
What measurements do I need to size Little Sleepies accurately?
Little Sleepies publishes height, weight in its size chart. Height is the primary driver on this chart.
Where do I buy Little Sleepies?
Little Sleepies is sold on its own site and on Amazon, so you can pick the marketplace you prefer.