Obvious for me to say: there's a point in time when you're going to stop working and you're going to be draining away your safety net regardless, because you're retired.

So with a sabbatical now, just think that you're making time now so that you can have a better retirement later because you'll be ready for an enjoyable retirement as opposed to needing to take two or three or five years of your retirement, just calming down from your crazy career.

It's definitely not an easy thing to consider. Do evaluate with an extended pros and cons list and weight each item in the list.

Burnout for me weighed extraordinarily heavily.