This is a standard UK single mattress 3ft by 6ft3 by around 9" Deep (90cm by 190cm by 23cm) approx. Please double check you are ordering the correct size for your bed as these items are difficult and expensive for you to return should you order the wrong size.This is a well padded basic spring mattress and comes in at around 9" in depth. It uses a conventional 13.5 gauge open coil Bonnell spring unit with insulator pads at it's centre. This unit then has multiple additional layers of paddings for extra comfort on both sides, and a layer of memory foam on top leading to the medium soft feel and generous 9" depth of this mattress. It comes with an elegant golden coloured border with a simulated pillowtop effect. This is an excellent mattress that combines fantastic value for money with super comfort levels. We supply this as a "bed in a box" meaning our modern hi-tech machinery has compressed the mattress and sealed it in a bag before rolling it so it fits in a box, making it both easier and cheaper for us to deliver - hence the fantastic value we can offer. It will need a few hours to expand after arrival before it will be ready to sleep on. Please be aware that the initial expansion can be quite rapid, so please ensure young children and pets are kept well clear. This does mean that we do not use side supports on this mattress, and you should therefor avoid sitting on the edge of your mattress. (we do have a firmer version of this mattress in our Amazon storefront that is delivered flat and does have side support.)All our mattresses are fire resistant and conform to BS 7177 : 2008 for domestic use (low hazard) and are labelled accordingly. We aim to deliver your mattress within 7 days, but as all our mattresses are made to order it does sometimes take a little longer. We are currently unable to deliver to N.Ireland, offshore isles or the highlands.