This is a great example of good quality at a low budget. Perfect for guest rooms, kids or those who are pushed for space, the 2 in 1 is a space efficient piece. The trundle rolls from beneath the bed and can be easily put up to extend the sleeping space or create another bed as shown. The mattress has a 13.5 gauge spring unit with a 6 gauge steel rod edge. Rod edges extend the sleeping surface and stop the sides sagging, a common problem among even expensive open coil mattresses. Layers of soft fibre fillings are micro quilted in place. It has a hard wearing damask cover and comes with a 1 year guarantee. This set includes a standard single sized mattress and a special sized mattress (170 x 77cm). Cover may vary.