A lot of people find listening to white noise or documentaries useful for going to sleep. I usually use my phone to do this, but the problem is that it's tempting to browse the internet on my phone. Are there any devices that allow for different forms of white noise, or ideally can be loaded with podcasts? Also good would be if it can double as an alarm clock,  especially an alarm clock that has a light that turns on. 
A noise maker to assist with sleep
speakers