Ruffwear Urban Sprawl Waterproof Dog Bed. A comfortable bed for home or beyond! This bed by Ruffwear features a two-sided recycled polyester mattress giving Bowser the option to sleep on a firm or soft sleeping surface a waterproof non-skid bottom that creates a moisture barrier an easy to clean microsuede cover and handle for easy carrying. This bed is great for all seasons as the firm side is great for warmer temperatures and the soft side is great for cooler temperatures. Both cover and mattress are machine washable but wash separately. To wash cover secure fasteners and wash cold on gentle cycle with mild detergent; air dry. To wash mattress throw mattress in a commercial front loading washing machine and wash cold on gentle cycle with mild detergent; air dry.Sizing:M: 38 in. x 35 in. x 4 in.L: 36 in. x 48 in. x 4 in.