Making The Crate Cozy

For the first few several days, refrain from adding bedding to your puppy's crate. Any towels or blankets can absorb urine and it will become less of an incentive for your puppy to keep his den clean. However, you might want to consider giving him a stuffed toy to cuddle with. 
It'll help lessen the loneliness a bit and remind him of his littermates. Once your puppy starts managing to keep his crate free from elimination, then you can add some cozy comforts for him.