Extra Sleeping Space

My husband and I have been thinking of getting mattresses for quite a while now, since our bed is not enough for the three of us (we co-sleep), but we really did not have enough space in our small room. We thought getting air mattresses would be a better option, but my mom told us that they bought several during a summer activity in her temple and the mattresses didn't last until the next activity. I guess they're not all created equal. We ended up just buying ordinary foam mattresses for our daily use but I'm still considering air mattresses for unexpected sleepover guests because they are easier to store, but I'll have to check for review to see which the best brand is before I actually go out and buy.