Skip to top navigationSkip to shopping bagSkip to main contentSkip to quick filtersSkip to product filtersSkip to footer links
Open and use a Navyist Rewards Credit Card & get an extra 30% off* your first purchase. Apply Now.Open and use a Navyist Rewards Credit Card & get an extra 30% off* your first purchase. Apply Now.
on logo lighton logo dark

ONEPIECE Sleepwear

43 items
Size Variant
to
43 items
Thermal-Knit Pajama One-Piece
Thermal-Knit Pajama One-Piece
$44.99
$8.96 - $12.47
Satin Pajama Robe
Satin Pajama Robe
$39.99
$19.97

ONEPIECE SLEEPWEAR

Get ready to cozy up in style with our collection of onepiece sleepwear at Old Navy. Whether you're looking for matching Halloween pajamas for the whole family or a thermal-knit pajama onesie to keep you warm during the colder months, we've got you covered. Our onepiece sleepwear is designed with comfort and style in mind, making it perfect for lounging around the house or getting a good night's sleep.

For the little ones, we have adorable unisex snug-fit printed pajama onesies that are both cute and comfortable. And if you're expecting, we even have maternity matching pajama onesies that will keep you comfortable throughout your pregnancy. Our onepiece sleepwear comes in a variety of sizes and styles, so you can find the perfect fit for everyone in the family. Shop our collection of onepiece sleepwear at Old Navy and get ready to relax in style.