WD40 might be my sleeping aid
I had a week of beautiful sleep (6 hrs/night) in the middle of March. One night my wife moved in bed (we sleep separately in the same room) and the fucking mattress squeaked. My wax earplug had fallen out so the noise naturally woke me up at about 2 or 3. I could not go back to sleep and since then, I've been hypervigilant about that bed's noises. If they wake me up I spring up in a state of hyperarousal it takes me hours to get over it, and by then it's time to go to work.
Unless I really crank up my brown noise or hibernation rumble (I try to avoid high volume), I hear that mattress every time she moves. My wife sleeps 7-8 solid but she is an active sleeper and that mattress is killing me. I've been up since 1:30 or so after that mattress destroyed my night again. Luckily I go to bed at 9:30, so there's that.
I bought some sound dampening ear muffs but they are difficult to sleep in. All my solutions are built around covering up the sound but my next step is trying to tackle the source of the squeaks. I'm rambling but I feel like shit and this fixation (which is about 95% of my insomnia) if making me the most unhappy goddamned person right now.
This weekend WD40 is on the shopping list.