The phone thing... Why not make it a mutual rule of no phones in bed? Like if you want to be on your phone, that's fine, but go sit in the living room or something? I'm assuming you've communicated with her about wanting more time with her during the day?

The sleep study is tough, I don't even think that's the expensive part of the whole equation.

Good luck to you. If you ever need someone to talk to, feel free to reach out!