Your Memobed mattress is not compressed until you order it. And because we use higher quality foams it recovers faster than any other mattress we’ve seen. Before we were comfortable releasing our mattress we looked into all the others first to see what works and what we can do better. What we’re saying is that this mattress should be opened on or very near the place you plan to sleep on it because it expands quickly and is ready to use within a few minutes. It’s super easy to set up, just unwrap it and watch the mattress you’ll love expand, lie down and rest assured!