Its the "sleep & play" and you may have to have Sabre or your dealer get it from the Puma factory. I had to order it on my sabre 36qbok, but its not on the option sheet. Its an ask only or special run thing (or maybe short on the sleeper sofas) i believe. I told my rep i wanted it, then my dealer when i ordered, and then followed up again with my rep later to make sure we got it.
Fyi- sabre doesn't realize that there is a molded, apolstered piece that fits between the "humps" on the back, and the wall, when folded down. We knew because our puma had it. When we asked about it when we took delivery, they ended up having to get that piece from puma, and then sent it too me.
Ps. The columbus line use to have it too