As soon as your mattress leaves the warehouse, we will send you a shipping update and a tracking link for you to track your order. Should you wish to change the date and time of your delivery, you must contact our customer service team at least one working day prior to the agreed delivery date. Please note that if you'd agreed on a delivery date and time with our logistic partner and decided to change afterwards, there would be an additional charge of not less than $450 HKD.