Actually, the sofa sleeping has been better for my back. You would expect the opposite to be true, but this is a well built sofa...firm, but soft and supports my back. I have Down pillows that are wonderful for comfy sleeping, too.

I also have a recliner that's a comfy napper, but not an all nighter.

I used to be a tummy sleeper, but because of my lumbar problems, i sleep on my back and side, which is perfect for sofa cruising..