Another reason we do not recommend letting the dog sleep in your bed is that it can make them very bossy. Dogs are pack animals, and if it thinks it is the leader or alpha, it can become bossy, herding, or even aggressive. Allowing it to sleep in the bed will give it the idea that it is the alpha.  Likewise, sitting with you on the furniture, or you getting down on the floor lower than it, winning at  a tug of war, or allowing it to walk ahead of you and pull on the leash will all give it the idea that it is the boss, so if you want to be in control of a well-adjusted dog, give your dog a new bed of its own from the moment it arrives at your house. 

A puppy is also a den animal, so it is good for yor new family member to have a specific place of its very own, and a place to keep its toys and safe nylabones. A crate is also a must for this, and when you want to confine him and have him rest and be able to get away from the rest of the family.   It is not a cage for punishment. The crate should allow for growth but not be so large that puppy is scared of it.  Later, you will show puppy how to enjoy his second home. A crate is also a great way to housetrain your pet. They don’t tend to soil in their dens and so going ‘outside’ will soon get them in the habit of doing their business outside.