So Tired!

I think the week is catching up on me. I'm sitting here and might as well have coffee running directly into my bloodstream for what it's worth - but I am knackered. I feel heavy, my eyes are doing that slow-blink thing, but I know if I head up to the sofa or bed, I'll wake up before I get there and spend an hour trying to sleep before giving up and heading back downstairs!

Ugh.