I don't remember if I actually had dreams that kept me awake, but when my D sitch was going on, I actually took an over the counter sleep aid. Kind of like Tylenol PM, but w/o the Tylenol and it helped a lot.
Unfortunately, 7 wks is still early into your sitch. It's going to take time for you two to work through to either making your M better or ending it.
Just keep plugging away & try one of the over the counter sleep aids to help you sleep.
Me: 38 H: 35 S4, S5, S10 Bomb 01/07 Wanted D - nothing would change his mind Numerous A's prior to D bomb; EA prior/during D bomb Piecing 04/07 Deployed for a year 05/07 Still Piecing 2010 M 11 yrs 05/10