I have been mulling this one over all day and have finally decided at this late hour to ask for other's opinions. Maybe you have some words of advice.

We have a 2yr old springer bitch who sleeps in her own large crate under the stairs.

Yesterday we introduced a springer bitch pup, and due to not having a second crate (we weren't expecting to collect the pup straightaway), let the two dogs sleep together in the older dog's crate. They were fine. No whining from the pup and no protest from the older dog.

Today I have purchased a second crate which is in the living room and will eventually be for the pup to spend her nights in once she is too big to share with the older dog. Today they have both been nosing in and out of it quite happily, so I guess it will double as a cosy daytime space for both of them.

My question is should I let them both stay sleeping together in the first crate until the pup is a bit bigger, or should I start as I eventually mean to go on tonight with putting them in their own crates from day one (or day two!)?

Thanks to anyone who has an opinion they are happy to share!