This sleeper comes with all of this as well as plenty of storage for extra diapers, blankets, bottles and anything else you might need. (abckidsinc.com)
Did you know you could leave the hospital with extra diapers? (creditdonkey.com)
Also, don't forget to pack extra diapers and wipes (the hospital will probably provide you with them, but you can never be too prepared!). (whattoexpect.com)