This is a cheap mattress so I was not expecting much from it.  It's only for the occasional guest but would not stay comfortable with heavy use.  The topping is quite sparse and the springs very squishy so it wouldn't suit a heavy person either.  As it has not been used yet it is difficult to tel how long it will really last but I wouldn't buy one for permanent every day use.  It was great it came rolled up and hasn't taken too long to unfurl.