They may be scared, lonely, and have to go to the bathroom a lot. But there are some things you can do to help them and yourself get a good night's sleep.
Create a safe and comfortable space for your puppy to sleep. A crate is a great option, but you can also use a playpen or a designated area of your bedroom.
Tire out your puppy before bed with some playtime. This will help them to sleep more soundly.
Take your puppy out for a potty break right before bed. This will help to reduce the chances of them having an accident in the night.
Be consistent with your puppy's sleep routine. Put them to bed and wake them up at the same time each day, even on weekends.
It's normal for puppies to whine when they're first put to bed.
It may take a few nights for your puppy to adjust to their new sleep routine. Be patient and consistent, and they'll eventually learn to sleep through the night.