What type of mattress is suitable

I unfortunately suffer with menopausal night sweats and have recently purchased a 1000 pocket memory foam mattress with a gel tech covering, it doesn't appear to regulate my body heat therefore making the sweats worse, I have been advised to look into an iGel type, can you give some advice on the best type of product for my needs, my husband also suffers with a bad back so we need something that would help both