Which nest is more suitable for dogs to sleep in?

I raise Xiao Ha, and Xiao Ha's sleeping posture is very interesting, such as lying on all fours, straight on one side, curled up and so on. Generally speaking, I think they need a lot of space to sleep, and their sleeping postures are basically stretched, and they will only shrink into a ball when the weather is very cold. ...

Therefore, it is suggested that the landlord get a dog house for Xiao Ha. If there is no choice, use the first one, but the larger the size, the better. 80CM long may be a little small. ...