The Milliard Gel Mattress Topper offers the perfect combination of comfort and support for the ultimate sleep experience. Sleep better with reduced tossing and turning on our unique memory foam topper that is naturally hypoallergenic and anti-microbial—providing relief for allergy and asthma sufferers. BEST ANSWER: For the 100% Natural Latex Mattresses, if you receive your mattress and it’s softer or firmer that you would like, just give us a call to exercise your 100 night comfort guarantee. We’ll send you a new top layer of 100% natural latex of a different firmness. Simply unzip the top of your cover and replace the old top layer with the new. Menu. The Best Mattress. Best Hybrid Mattress: Which One is Best for You? Best Innerspring Mattress: Which One is Right for You? Best Mattress For Lower Back Pain .