Issues sleeping

I've been dry now for 5 whole days after 21 years and all of the detox issues seem to have now cleared, but by golly I cannot sleep! Luckily I work from home, and part furloughed, so no external pressure to be up at 8am every day. I've tried hot chocolate, a bath, reading etc but I'm always really wired. Has anyone had this, and any idea howling this may last?