I've had a few breaks.
I quit my last band about 14 months ago as it was becoming very stale - I couldn't influence it was organised by the local educational music trust. The new arrangements were dull and kind of were a reflection on the band leader rather than what everyone actually wanted to play. It started to kill my desire to play at all so I knew I had to go.
I didn't play at all for at least 3 months, didn't even get a bass out of a gigbag.
Then I started noodling a bit and playing along to CDs but that wasn't really doing it for me either. But now I find myself writing original stuff again and that is definitely flexing a different set of mental muscles. I play bass, guitar, a bit of sax and I can sing (although painfully out of practice) so I'm doing that.
I have no desire to gig at the moment, but I'm enjoying the creative process. My favourite band format is the power trio, or maybe the usual guitar,bass,drums with a singer who can occasionally join in with another instrument so I'm writing with that approach. I like the space and the easy dynamic changes that come from having fewer instruments.
A change has definitely been as good as a rest for me.