Leisure Sports Foam Sleep Pad- 1.25" Extra Thick Camping Mat For Cots, Tents, Sleeping-Bag- Non-slip, Waterproof and Carry Handle By Leisure Sports (black) in the Sleeping Bags & Pads department at Lowes.com
Cooling Gel Memory Foam Mattress Pad | The Company Store
Amazon.com: Foamma 1" x 20" x 20" High Density Upholstery Foam Padding, Thick-Custom Pillow, Chair, and Couch Cushion Replacement Foam, Craft Foam Upholstery Supplies, Foam Pad for Cushions and Seat Repair :