Premium Support with 2" Thick High-Density Foam: Designed with a 2-inch thick high-density foam core, offering superior support compared to thinner alternatives. Helps promote healthy spinal development for your baby. 100% Breathable Cover for Added Comfort: Features a fully breathable cover made from hypoallergenic materials, ensuring a sweat-free, Non-toxic, safer, comfortable sleep environment for your baby. Built-in Water-Resistant Lining for Easy Cleaning: Protects the foam from accidental spills or diaper leaks. The water-resistant lining ensures messes are easily wiped away for quick clean-up. Machine-Washable Covers for Hassle-Free Maintenanc: Both the breathable cover and water-resistant lining can be removed and machine-washed, making clean-up effortless and convenient for busy parents. Compatible with Multiple Bassinet Brands: 35"x20"x2" rectangle shape specially designed to fit a variety of popular bassinet brands, including fit for Dream On Me Skylar & AirClub & ANGELBLISS bedside & Bold & Ezebaby & HARPPA & Larex & Evolur & Li'l Pengyu & AMKE Bassinet. Give your baby the best start with our 2" Thick High-Density Foam Bassinet Mattress, providing the perfect balance of comfort and support. The enhanced thickness offers superior spinal alignment, ideal for promoting healthy development during those crucial early months. Crafted with a 100% breathable cover, our mattress ensures optimal airflow, keeping your baby cool, dry, and comfortable all night long. The hypoallergenic materials offer peace of mind for sensitive skin, creating a gentle and safe sleeping environment. Worried about spills or accidents? The built-in water-resistant lining protects the foam core from moisture, making clean-up as simple as a quick wipe. Plus, both the cover and lining are fully machine-washable, allowing for stress-free cleaning when life gets busy.