Coleman Airtight System guaranteed not to leak. Advanced Double Lock Valve locks in air two ways. Inflated size: 78 x 60 x 8.5. 48 coils. Wrap 'N' Roll : Saves time, just roll into attached carrier, tie and transport. Hands-free inflation and deflation with 4D QuickPump unit (included). Durable, heavy-duty PVC construction. Soft suede top for luxurious comfort. Conveniently fits standard sheets