To call this a sleeper sofa is really a little misleading it is actually more like a futon in that there is no pull out mattress with box springs and a thin little pad.  It jack knifes open and closed.  It is very comfortable as a makeshift bed except that the arm rests do not step put on the velcro which makes a scratchy surface to pump up against while sleeping.  Conversion from bed back to sofa takes a little doing to get the angle of the back to be completely upright again.  Satisfied with the purchase!  Unfortunately the price of the shipping to get it to us in 3 days was a almost half the price of the sofa.