Which is ok? I even can’t/ can’t even sleep well at night.
Thanks

Question

Answer

"I can’t even sleep well at night." Sounds familiar so it should be okay.

Answer

I can't   even sleep  well  at night is grammatically correct 
 I can't sleep well even at night is fine otherwise

Hope this helps

Answer

"I can't even sleep well at night" is grammatically correct. The first option, "I even can't sleep well at night" doesn't sound right.