The mattress in question is 2.5 years old. The topper is already very saggy and, due to it being ridiculously hot, is rather stained. Is it possible to remove the memory foam topper and replace it with a generic topper that may be a little cooler. I'm having to use a gel cooling pad between topper and the mattress protector and I'm still too hot - no heating in the bedroom, windows open and outside there's frost on the ground. Something needs to change and I'm loathe to spend hundreds of pounds to replace a mattress bought in 2014.
Thanks.