You can begin experiencing the comfort of your new AVONEST mattress almost immediately! Though it takes about 48 hours for the mattress to expand to 90% of its full height, it's perfectly fine to start sleeping on it just 3 hours after unpacking. Using the mattress during this initial expansion period won't impede the inflation process; in fact, it can even help the mattress regain its intended shape more quickly. Embrace the convenience of your AVONEST mattress, designed to adapt swiftly to your home environment, ensuring minimal disruption to your sleep schedule and maximum comfort from the first night.