I have an Ikea Kivik sectional that is really comfortable. The one nice thing about Ikea is how easily you can replace covers for a fraction of what a new sofa would cost (either in store or on Etsy). I’ve also found new/like new sofa cushions in the as-is section of Ikea for $15 a piece. With a new cover and after replacing a couple of our most used cushions, my Kivik has lasted around 8 years and basically looks/feels new. It’s not a sleeper sofa, but I did sleep well on it last night (sick coughing spouse was keeping me awake).