Sleep tight on the CORE Equipment 4 Season Self Inflating XL Camping Bed. Its 3-inches of plush, self-inflating foam with a smooth surface provides full-body support for a refreshing nightâs sleep. The 8.4 R-value is optimized for temperatures as low as 0°F, and its built-in micro-adjust feature allows you to dial in your ideal firmness, tailoring to your needs. The corner straps enable you to connect multiple beds to create a larger sleep surface. CORE Equipment 4 Season Self Inflating XL Camping Bed Grey - Air Mattress/Accessories at Academy Sports