Instead of the 2000 pocket mattress, I received the 1000 pocket mattress.  It then took three weeks to try and arrange collection of the incorrect mattress and the delivery of a replacement mattress,  In the end, it was easier for me to accept the incorrect mattress as the replacement had gone missing and the driver who turned up to collect the incorrect one was unable to fit in into the van.  The 1000 seems comfortable enough but is not what I wanted,