If you find that your baby's crying when you put them down to bed, there are plenty of tricks you can try to help them calm down and fall into a deep sleep.
Making their sleeping space a relaxing place to be can make a big impact, especially if you live with lots of other people or in a noisy city. For instance, you might want to try a baby-safe white noise machine to block out noises that could be stressing them out, and installing blackout blinds to prevent any wakeups from blaring lights or sun coming in through the window.
You can also soothe them before bed with a calming routine to get them in the mood to snooze. It's up to you what this includes, but many parents like the classic method of bath time and a bedtime story to get their little one feeling sleepy and secure.