I have studied this model at my local dealer several times and I am still not totally sure. The one thing I do know is that the mattress sits on a wooden base and only over hangs the wooden base by no more than six inches, mabe less. there is a fold in the mattress but seem like the fold is there to make accessing the storage underneath easier. If the mattress does fold, it can only raise a little before the wooden base reaches the wall. Like Jamie stated, when I measure the length of the slide extended from the outside using my arm, it seems longer than the distance from the mattress to the wall which is confusing to me. I wish they would have kept the slide in the front alone with the sofa to go with the slide in the rear.
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