How long does it take for a DreamCloud mattress to expand?

A DreamCloud Hybrid mattress may take up to 72 hours to fully expand up to its original form. However, you can start sleeping on the mattress in a couple of hours. Please note: breaking in a new mattress always takes time. External factors like air pressure, airflow, room temperature, etc., may affect the expansion timing of the DreamCloud Hybrid mattress.