OMI's Wave mattress topper is made with 3" of GOLS-certified organic natural rubber latex encased in certified organic cotton knit fabric. The sculpted surface provides comfort for sleepers with pressure-point issues. This comfortable pillow top provides added surface depth for sleepers, but offers more firmness than a wool topper and without reducing the support of the mattress. OMI's offer a welcome layer of plushness. Covered in soft certified organic cotton knit fabric. OMI's pillow tops add a luxurious feel to any mattress.