Thanks for the advice guys. I think I will get them a little dog house to put inside the enclosure so they have a little space to be more cozy if they like. WIll look into the sand and straw. I used pine shaving when we were keeping them in our XXL dog kennel at night but it was so messy...
We have 3 5 months old pekin ducks. We have this enclosure for them at night:
https://www.amazon.com/Advantek-Original-Pet-Gazebo-Large/dp/B00E64HZAE/ref=cm_cr_arp_d_product_top?ie=UTF8
I was wondering what was the best bedding to use. I have been reading about the deep layer bedding you...