Here is the pattern for Lola’s couch, designed by Liz Fisher. It measures about 13″ wide x 6″ high (32cm x 15cm).
The instructions are easy to follow, although you will need to measure accurately (not normally my ‘forte’!) but I did a workshop with Liz, had a great time and everyone was thrilled with their results! The structure is made from heavy cardboard and covered with your fabric of choice.