It is MANDATORY for the tiniest babies to have a crate to retire into. It is so scary to allow your tiny roam of the home. Too often there are terrible stories of these tinies eating something on the floor that may have been overlooked or gone un noticed. Well these babies are very inquisitive and will taste everything that they see. It may be poisonous to them. They have very small digestive systems and what may not be poisonous to me or you, may be to them. Also a crate will prevent them from expending too much energy that could deter a hypoglycemic attack. What I REQUIRE for the first year of life for all my babies especially the tiny ones is this, a medium size crate with room enough for a pee pad to be attached down. I use a tray that secures the pad down. I also have a water bottle attached to the side (always always make sure that the water is coming out of the spout freely).
I put about 2 teaspoons of sugar in this 16 ounce water bottle for puppies and extreme tinies. Then on the other side (from the pee pad) of the crate I have a big fluffy soft bed. Then of course the food bowl, most puppies should eat 3-4 times a day. Much more than that on a tiny and your asking for trouble such as joint problems, obesity which will lead to other problems ect. We use Royal Canine Xtra Small Breed Puppy. This crate is mandatory for all of my babies during their first year of life. Then I leave it up to the owners after the first year of life then they can allow the babies more free roam in your home, providing you do not have larger dogs or young children in the home. Most of my puppies only eat dry food. I will let you know if wet is recommended.