UPPABaby Vista bassinet can be used for up to six months. The weight limit is 20 pounds or when your little one can push up on hands and knees, whichever comes first. General recommendations are to keep your baby in a bassinet until they can lift themselves up. You get a three-year warranty for the bassinet from UPPAbaby, but I couldn't find the expiration date. Here, you can find the manual for the product with safety tips and additional information that you can find useful, and I possibly forgot to mention.