Not too firm and not too soft, the Serta Elmont mattress with a Euro top ensures that your child remains sleeping soundly through the night. Innovative Cool Twist foam within is infused with cooling gel that works to dissipate heat while gently cradling their body. At the core, the renowned SertaFlex innerspring system is known for extensive support and durability. PillowSoft Aire foam brings ultrasoft cushioning in a rippled design that promotes airflow and reduces heat build-up. Featuring FireBlocker Fiber, this mattress utilizes a blend of natural and synthetic fibers to isolate the impact of a fire and limit its spread, bringing peace of mind to your sleep. 10 Year Non Pro-rated Warranty