I've a double mattress that is only two years old. The bed it was on originally was put together incorrectly when I moved house, the middle support missing, and the mattress started to dip in the middle. I now have a new double bed frame, but the mattress still dips in the middle. Is there anything I can do to fix this? I've tried turning the mattress. I have a mattress topper, but wondered if a memory foam topper would help? Or is it a case that something right through the mattress is broken? Sorry, that sounds stupid, I just can't understand how it can be damaged by not having enough support underneath it for half a year
The slats were fine, it was literally just a case of a middle leg missing!
I really can't afford a new mattress, so if I can't mend it I'll have to put up with it as it is, but I have a bad back and it's not helping.