How long does it take for the mattress to expand? Short answer: Not very long. It will take about 2 hours for the mattress to fully decompress, but you will notice the mattress start to expand the second you unroll it and remove the plastic covering. Related articles How do you set up the Frankly Mattress? What is the weight capacity of the Frankly Mattress? Does the Frankly Mattress require a box spring? Still need help? Chat Email Call
