Rookie Humans crib sheets are designed to double as whimsical backdrops for all the sweet pictures you will capture of your baby’s first years in the crib. Soft and breathable, these fitted crib sheets are 100% cotton sateen, fade-resistant, and OEKO TEX certified free of harmful chemicals. The Moon's Birthday crib sheet was lovingly designed by artist Swantje Hinrichsen, inviting your tiny dreamer to RSVP to the sleepiest party tonight. Your baby will enjoy sleeping amongst a friendly anteater, sleepy sun, happy cloud, acrobatic mouse, bird and of course the moon. Because our sheets are fade-resistant, they will remain vibrant wash after wash. Dimensions: 52x28x8 in (fits standard crib mattresses)