Sofa bed in 2720SL not level when converted to bed

[RottieMom]

Has anyone else had an issue with the back part of the sofa that converts to a bed in the 2720SL? The way the sofa converts into a bed is to slide out the sofa seat bottom on a track and then you're supposed to lay the sofa back part down on the tracks to make a "double" bed. It's really just a little wider twin bed than a double bed, but the issue I'm having isn't the size, but that the sofa back part is much lower than the sofa seat bottom when you lay it down on the tracks.

Has anyone else had this problem? And, did you come up with a way to elevate the sofa back part so it's level with the sofa seat bottom when converted to a bed? Don't want to reinvent the wheel if someone already has a good fix for this.

Thanks!