Questions About Crate Comfort

My puppy is 13 weeks old, and we've been working on house training. I bought and have been using a crate and he's now pooped outside for the very first time. My concern is that he doesn't have enough room. I read to use the divider to only give him enough space to lay down and turn around, which he does have. But outside the crate, he liked to sleep all sprawled out. Does he have enough room, or does this seem too cramped? Thank you so much for any advice.

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