Just FYI, the images on your site appear to be lazy-loading and on Firefox, it's creating a very stuttered experience. I thought it may have been the size of the images, but none of them are HUGE (there are a couple over 1MB though).
Please go ahead and provide proven solutions to those of us who are exhausted and desperate. If you profit while you're at it too, it's a clear win-win!
I'm the CTO of a startup working on exactly this (pediatric sleeping):
https://www.restfullysleep.com/
Fun fact there are 3 total methods to naturally promote sleep.