Husband can't sleep how can I help him?

My husband has bad tinnitus after being in the military. He's not sleeping well. He has a standing fan that runs all night and I got him a white noise machine. The white noise machine unfortunately only lasts about 2 hours and shuts off. Even though he still has the fan, he constantly wakes up when the white noise machine shuts off and has to restart it.

I came across the soundcore A20 earbuds. I have read a lot of great reviews. One thing that concerns me is that some articles day that having earbuds with constant sound can actually cause more damage and male tinnitus worse in the longterm. Is this true? I want to help him but afraid of making his tinnitus worse.

This is affecting his life greatly. He has anxiety because of it and he's not sleeping well at all which is just making him more stressed out. The VA isn't much help. They just keep adding medications.

Any advice you guys have would be greatly appreciated. I have almost hit the buy now button for the earbuds but keep hesitating.