Bored but still won't work

It is always around 2:30-3:30 each day that my productivity bottoms. I know there are a few things to do that could keep me busy for a half an hour or so but staring blankly at the computer screen seems more appealing, now isn't that sad. I go get coffee, decaf because I'm trying to be healthy or something, I look at an empty email Inbox (no she hasn't gotten back to you with the url you needed), I sip coffee, take off my shoes and just space.