Brand vs brand

Carter's vs Little Sleepies sizes

Of Carter's 12 baby and toddler sizes, 6 line up closely with a Little Sleepies size, 6 are partial matches, and 0 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Carter's Up to 5 lb = Little Sleepies Preemie, Carter's Newborn = Little Sleepies Newborn, Carter's 6M = Little Sleepies 3-6M, Carter's 2T = Little Sleepies 2T.

Carter's True to sizeLittle Sleepies True to size

Based on published size charts compared with other brands.

Size by size, on one scale

Each block is one size, placed where the brand's chart puts it. Blocks that sit above each other fit the same baby.

Weight (lb)

Carter's

Up to 5 lb: up to 5 lb
Preemie: up to 6 lb
Newborn: 6 to 9 lb
3M: 9 to 12.5 lb
6M: 12.5 to 17 lb
9M: 17 to 21 lb
12M: 21 to 25 lb
18M: 25 to 28 lb
24M: 28 to 30 lb
2T: 29 to 31 lb
3T: 31 to 33 lb
4T: 33 to 37.5 lb

Little Sleepies

Preemie: up to 5 lb
Newborn: 5 to 8 lb
0-3M: 8 to 12 lb
3-6M: 12 to 17 lb
6-12M: 17 to 23 lb
12-18M: 23 to 26 lb
18-24M: 26 to 30 lb
2T: 29 to 31 lb
3T: 31 to 35 lb
4T: 35 to 39 lb

Height (in)

Carter's

Up to 5 lb: up to 17 in
Preemie: up to 18 in
Newborn: 18 to 21.5 in
3M: 21.5 to 24 in
6M: 24 to 27 in
9M: 27 to 28.5 in
12M: 28.5 to 30 in
18M: 30 to 32 in
24M: 32 to 34 in
2T: 35 to 36.5 in
3T: 36.5 to 39 in
4T: 39 to 41.5 in

Little Sleepies

Preemie: up to 18 in
Newborn: 18 to 21 in
0-3M: 21 to 23 in
3-6M: 23 to 27 in
6-12M: 27 to 31 in
12-18M: 31 to 33 in
18-24M: 33 to 34.5 in
2T: 33 to 36 in
3T: 36 to 39 in
4T: 39 to 42 in

Carter's size to Little Sleepies size

Carter's	Closest Little Sleepies	Match	Weight: Carter's / Little Sleepies	Height: Carter's / Little Sleepies
Up to 5 lb	Preemie	Close match	up to 5 lb / up to 5 lb	up to 17 in / up to 18 in
Preemie	Preemie	Partial	up to 6 lb / up to 5 lb	up to 18 in / up to 18 in
Newborn	Newborn	Close match	6 to 9 lb / 5 to 8 lb	18 to 21.5 in / 18 to 21 in
3M	0-3M	Partial	9 to 12.5 lb / 8 to 12 lb	21.5 to 24 in / 21 to 23 in
6M	3-6M	Close match	12.5 to 17 lb / 12 to 17 lb	24 to 27 in / 23 to 27 in
9M	6-12M	Partial	17 to 21 lb / 17 to 23 lb	27 to 28.5 in / 27 to 31 in
12M	6-12M	Partial	21 to 25 lb / 17 to 23 lb	28.5 to 30 in / 27 to 31 in
18M	12-18M	Partial	25 to 28 lb / 23 to 26 lb	30 to 32 in / 31 to 33 in
24M	18-24M	Partial	28 to 30 lb / 26 to 30 lb	32 to 34 in / 33 to 34.5 in
2T	2T	Close match	29 to 31 lb / 29 to 31 lb	35 to 36.5 in / 33 to 36 in
3T	3T	Close match	31 to 33 lb / 31 to 35 lb	36.5 to 39 in / 36 to 39 in
4T	4T	Close match	33 to 37.5 lb / 35 to 39 lb	39 to 41.5 in / 39 to 42 in

Little Sleepies size to Carter's size

Little Sleepies	Closest Carter's	Match	Weight: Little Sleepies / Carter's	Height: Little Sleepies / Carter's
Preemie	Up to 5 lb	Close match	up to 5 lb / up to 5 lb	up to 18 in / up to 17 in
Newborn	Newborn	Close match	5 to 8 lb / 6 to 9 lb	18 to 21 in / 18 to 21.5 in
0-3M	3M	Partial	8 to 12 lb / 9 to 12.5 lb	21 to 23 in / 21.5 to 24 in
3-6M	6M	Close match	12 to 17 lb / 12.5 to 17 lb	23 to 27 in / 24 to 27 in
6-12M	9M	Partial	17 to 23 lb / 17 to 21 lb	27 to 31 in / 27 to 28.5 in
12-18M	18M	Partial	23 to 26 lb / 25 to 28 lb	31 to 33 in / 30 to 32 in
18-24M	24M	Partial	26 to 30 lb / 28 to 30 lb	33 to 34.5 in / 32 to 34 in
2T	2T	Close match	29 to 31 lb / 29 to 31 lb	33 to 36 in / 35 to 36.5 in
3T	3T	Close match	31 to 35 lb / 31 to 33 lb	36 to 39 in / 36.5 to 39 in
4T	4T	Close match	35 to 39 lb / 33 to 37.5 lb	39 to 42 in / 39 to 41.5 in

Try it

Compare any size

I know the size in

Size

What is that in

Every Carter's size in Little Sleepies

Close match

Carter's Up to 5 lb lines up closely with Little Sleepies Preemie.

Weight (lb)

Carter's Up to 5 lb up to 5 lb

Little Sleepies Preemie up to 5 lb

Height (in)

Carter's Up to 5 lb up to 17 in

Little Sleepies Preemie up to 18 in

The shaded column is the Carter's range. Bars show what each brand publishes for the size.

Based on published size charts. Carter's chart and Little Sleepies chart.

More comparisons

Charts retrieved October 4, 2026 (Carter's) and October 4, 2026 (Little Sleepies). Sources are listed on each brand page. This site is not affiliated with either brand.