The 8" Wool Wrap #613 21x28 Chair Ottoman Natural Futon Mattress features an extra firm surface feel, combining cotton and wool for comfort and insulating properties. This chair ottoman futon mattress includes a plush 2" thick layer of superior New Zealand virgin wool surrounding two layers of foam.With its 8" wool, cotton, and double foam construction, this futon mattress provides a resilient sleeping surface. The natural colored futon fabric allows for easy care with spot cleaning instructions. Technical specs include an 8" thickness and measurements of 21" x 28".The 8" Wool Wrap is designed with New Zealand virgin wool, wrapped around two pieces of 1.5" High Resiliency foam with 50 lbs of Gold Bond Joy cotton batting. This futon mattress offers a comfortable sleeping surface for those who prefer an extra firm feel.