Memory foam topper

My husband has been going back and forth to the doctors many times in the last few months. He just can't sleep and everything they prescribed doesn't work and its been costing us a lot of money that doesn't work.  They want him to go to a sleep clinic and he keeps on insisting that he can't sleep so what's the point. Last week our memory foam topper arrived and tonight we're stripping the bed to put it on. We just bought new pillows today and we hope the combination really helps.