If anyone here is struggling with insomnia or waking up feeling groggy, you might want to check the electromagnetic environment in your bedroom. I used to charge my phone, watch, and tablet right next to my head on the nightstand. My doctor suggested I look into "sleep hygiene" and mentioned EMFs. I bought a portable EMF meter to check my sleeping area and I was shocked. The wiring behind my bed was unshielded and creating a huge field right where my head rests. I also realized my wifi router downstairs was blasting signal right through the floorboards. I rearranged the room based on the readings and moved the charger across the room. It sounds like a placebo, but my sleep tracking app shows deep sleep has improved by 40% in two weeks. It is definitely worth checking your own house to see what invisible stressors are affecting your rest.