Anti-Reflux Pillow: The built-in anti-reflux pillow helps prevent vomiting milk and reduces the risk of intestinal colic, providing added comfort and safety for your baby. Height Adjustable: The baby nest has four adjustable to a 0-30° angle（0°/13°/15°/30°）, making it easy to find the perfect height for your baby's comfort and convenience. Versatile Usag: The right thickness and softness for the healthy development of the baby's spine. Our baby bed can be used as a lounger, co-sleeper, bassinet, tummy time area, travel bed, or even a changing station. A comfortable rest and play area for your baby in any place and time. Side Rails: The Baby Lounger features side rails that keep your baby safe and secure while sleeping or lounging.