I posted below in the cold weather post as well but thought this should also be its own post. When we went to the carseat inspection they said they did not approve of the Bundle Me for the carseat because it goes under the child and can be bad in a crash because it interferes with the straps and how they hold the child in. The carseat inspection place did approve a cover that goes over the top of the carseat. We got this one at Target and it has worked great so far!
https://www.target.com/Babys-Cozy-World-Microfiber-Embroidered/dp/B000VPPS9M/sr=1-14/qid=1226530353/ref=sr_1_14/185-9545552-2079539?ie=UTF8&index=target&rh=k%3Acozy%20cover&page=1
Re: An alternative to the Bundle Me