Aspen Lite Aircore Mattress – Adjustable comfort. Dialed to your specs. Perfect for Aspen Lite and Aspen Lite XL Dimensions: Standard - 45" x 71" XL - 52" x 71" This mattress will only fit Aspen Lite Standard and XL. Deflated thickness ~.5" *We recommend using an air pump to vacuum the air out and deflate completely. Not recommended to store mattress in tent in extreme heat situations.