Cat tired

Considering the amount of time cats spend sleeping, you'd think this phrase would be used rather than dog tired!
Spent the full day at work today and it was actually rather productive. Really impressed with the renovation going on in school too.
Quick visit to mum's to see the Welsh ones before enjoying tea with the other half for the first time in a fortnight - he finished work early!
Evening spent at the bestest friend's mum's house on the eve of the loss of her brother. Time moves so quickly.
We spent some time reminiscing and doing our best to chat about the good stuff.