I know how you feel, try moving one of those Temperpedic Mattresses. Wow, talk about heavy and unwieldy. Still they are everything they say they are.
My chiropractor insisted I get one for my bad back and I kind of scoffed at her. Then the Mrs got pregnant and had back problems, so as with anything in life, if the with-child-Mrs wants something, you better get it. Best thing we ever got.
The first night I slept from sundown to sun up without waking up. That was a first! Now the only time I wake up is if Alyson's having a bad night. Other then that,solid sleep with no back problems come morning. Hopefully your new mattress will prove to be just as restful.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"