As of May 2020, Little Sleepies has tweaked the sizing of their zippy sleepers to add some length to the torso.
While most of our current inventory such as Bananas, Pineapples, Strawberries, etc. are the new sizing, we have a few styles that are still the old sizing such as the 2019 Holiday Prints.
As always, with Little Sleepies they are made to fit true to size, so no need to size up!
Little Sleepies Size Charts