DMG 6113 Shakesphere Ortho Elite Sample Mattress. This 4'6 Shakesphere Ortho Elite Sample Mattress is an ex-display model from one of our stores.This item may have some marks from shop use.This is why it is available at this cheaper price. Make sure you grab a bargain today! Please note that this mattress has been laid on but not slept on!! So buy this DMG 6113 Shakesphere Ortho Elite Sample Mattress Was £219.00 Now £169.00.