They look so comfy all snuggled on the fluffy stuff! Adorable!
They do like a fluffy cloth and they'll sleep underneath it too which is good for strengthening their little legs as they push up into it.
Your little one is so cute there - I can't wait to see her fluffed up too! And I'm looking forward to seeing your Serama (we don't have them here and I love teeny birds and bantam chickens).