Visit the Sit 'N Sleep store where you purchased the mattress within 60 days of purchase. Let the staff know that you want to exchange your original mattress.
Browse the selection of available mattresses. When making your selection, be sure to tell the employee assisting you that you are exchanging the mattress.
Provide the store with documentation, such as the original sales receipt, so they can confirm your original purchase and eligibility for an exchange.
Pay the restocking fee, which according to Sit 'N Sleep's website will be 20 percent of the original price of the first mattress and should not exceed $500.
Provide your current mailing address so the staff can collect the old mattress and deliver your new mattress.