A bath before sleep is a delicious effective biophack for the body and brain
Take two cups of Epsom salts ( magnesium sulphate), 10 drops of lavender oil, and you soak for 20 minutes.
The lowers the cortisol levels and adjusts the body temperature for sleep.
Here is another recipe, there are many and experimentation as to what works for you is fun.
3 drops Roman Chamomile Essential Oil
3 drops Lavender Essential Oil
2 drops Marjoram Essential Oil
2 drops Thyme Essential Oil