Part of the midsummer magic is the right attire. A white cotton nightie is the right thing to wear while frolicking into late hours longest day of the year. These two styles for children are absolutely beautiful. There are two styles. One is a sleeveless style with crocheted lace detailing. The other is has tucking details and ruffled sleeve.
(Both styles are fairly roomy. The taller model, aged 10, is wearing the 5T size and it did work for her. The shorter model is 5 years old but wearing a 3T)