This 20-minute meditation can help with relaxing to go to sleep. It’s from a resource called Meditation Oasis, which can also be found on any podcast app (or iTunes or Google Play). They have lots of different meditations for all sorts of different situations.
https://www.meditationoasis.com/blog/2014/10/23/relax-into-sleep-guided-meditation
Direct link to the mp3: http://bit.ly/pod50