Soften your little sleeper s transition to a big kid bed with the 6 Innerspring Coil Mattress. This mattress features 13.5-gauge tempered steel coils to maintain consistent full-body support, and a bright white exterior to provide a clean and fresh presentation. Exclusively available in a Twin configuration, this mattress is perfect for bunk beds, trundle beds, and dorm rooms with limited space. This mattress can be used on its own or paired with a bed frame and box spring.