Being that it is Summer, I don't think she'll need any of them. Just keep them out of drafts and remember that they do not produce any body heat for 3 days. They will be plenty warm nestled up to their Mamma. Tell her to keep a very close eye on them at first ... they will get stuck under blankets and possibly even their Mamma and she will not remove them. They get around as soon as they're born. I truly hope all goes well