Please contact the customer service team for all changes that are needed including address change, mattresses size changes, payment changes, cancellation, or delivery dates. You can reach us at support@emma-mattress.ie, or right here on the chat option. Please note that the mattress does inflate in both width and depth. This means that the mattress can initially look like a smaller size whilst it is vacuum packed. Please remove the vacuum packing and watch the mattress inflate to the correct size before your eyes!