There is not an exact time that a puppy should go to bed. Given the fact that dogs thrive on routine, it is more important that you establish a sleep schedule with your pup and stick to it. By giving your puppy a routine bedtime, you set them up for better sleep and overall better health.
You might not want to put your pooch to bed too early, as it may wake up at night and want to go to the bathroom. For this reason, put your furry friend to sleep just before you retire for the night.