Sleep Inc. 7 Inch Spring Sleep Inc. low profile mattress makes good choice for most trundles bunk beds S70107FAC-1010 TWIN Mattress Twin S70107FAC-1030 FULL Mattress Full S70107FAC-1050 QUEEN Mattress Queen S70107FAC-1060 KING Mattress King S70107FAC-1020 Twin XL Mattress TwinXL Support Core Verticoil Innerspring Warranty 90 Day Profile Height 7 Inch Mattress Top Standard Top Coil Count Queen 380 Firmness 80 Mattress Border Arabella Origin Crafted In The USA Best For Kids