By Nicole Pelletiere, Good Morning America

A set of triplets who were born premature paid it forward last week after donating pajamas to the babies of the NICU, at Overland Park Regional Medical Center, where they were born 10 years ago.

"I couldn't be more proud," dad Ty Swarts of Shawnee, Kansas, told ABC News. "I'm really happy to see [them] giving back -- especially to young kids. It's just a really big learning lesson...."

The siblings, born April 14, 2006, got the idea to give back to the tiny residents of the NICU after seeing a photo of themselves in pajamas the nurses gave them while they were in the hospital.

"They were born at 32-and-a-half weeks," mom Jill told ABC News. "We were fortunate enough to only have them stay for three weeks. They all came home on the same day, which is very unusual for multiples."

She added: "The NICU put them in PJs so we thought, 'Let's go off that, pay it forward and put more PJs in the NICU for little guys and little girls.'"

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