Flexibly Fit for Most Bassinet & Cradle Mattress: Biloban bassinet sheet 33" x 17" (up to 33" x 20") fits for almost standard oval, round, rectangle, hourglass shaped bassinet mattress, which also fits for most standard bassinet cradle mattress. They are designed to fit fot most standard rectangle bassinet mattress like Mika Micky Bedside Sleeper/Baby Delight Beside Me Dreamer Bassinet/Dream On Me Waves 3-in-1 Baby Bassinet/AMKE 3 in 1 Baby Bassinet/ANGELBLISS Baby Bassinet Bedside Crib and other rectangle bassinet mattress. | Super Soft & Breathable Material: These bassinet sheets feel extremely soft and breathable. You will be surely find one to match your mattress in our store since we provide sheets with different sizes, cute patterns and nice colors. | Firm & Snug Fit Elastic Band: These bassinet sheets are made of ultra soft microfiber, woven into soft and durable fabric. Your baby will be enjoying the soft, smooth and comfortable feeling when sleeping or playing on them. And we use firm elastic band around, making our sheets sturdy and long lasting. | Skin Friendly and Easy Care: Breathable, lightweight and silkily soft bassinet sheet is friendly to your little one's skin. Machine washable on gentle cycle. Tumble dry on low heat or line dry. | Biloban's Life-time Satisfaction: Biloban's quality you can trust. If the product does not meet your needs for any reason, replacement or money back. No questions asked!