You are doing the CORRECT way of crate training. It probably isn't a pattern at this time, as far as his sleeping---unless you are one lucky mama. Their bladder muscles are not strong yet. If he cries in the middle of the night. Take him to PP, but no playing or talking. As soon as he PP's, then back to the crate. I took old throw cushions and made Maggie's crate a padded room. Before I put the cushions in the crate, I too thought she was sleeping all night, until one day I decided to wash her blankie. One corner was very wet. That is when I knew I had failed as a crate trainer. Broke out the book and started over. I put Maggie's crate next to me too, so she could see me. It works alot better, than putting them in a different room. Good Job. Keep It Up.
P.S. It also helps to cover the crate, just like you would with a bird cage. Make is dark and cozy, just like a real den in the wild.