If you are not completely satisfied with your new mattress we want to help! The change from your old, worn out mattress to a new, supportive one, may require an adjustment period. We ask that you allow a minimum of 30 nights for your body to adjust. However, if you are not comfortable within 90 nights from your original mattress delivery date, you may exchange or return your mattress for a cost of 20% of the original mattress prices and a redelivery fee.. This is valid for up to two returns or exchanges occurring within the 90-night period from the original delivery date.