In one way, I think it depends on the INTENSITY of your workouts. If you've been working out 4 x week but at a low to moderate intensity
, taking a few days off may be all you need....or,....then again, maybe none at all.
Another option,..."active recovery
," not passive recovery...take a week off of lifting and spend a week doing sports you like, play with the kids or dogs, go hiking, canoeing, kayaking, basketball, tennis,....etc. Indulge and get two massages in one week. Go swimming.
Working out at SUB-maximal levels, "technically" you could keep doing,...but one of the biggest reasons for breaks when working SUB-max, is to avoid psychological breakdowns/plateaus, and to keep THEM from leading to physical breakdowns.
Otherwise, my humble opinion is: Schedule breaks, do not wait and "listen to your body" in terms of taking a week off. (Listen to your body when it comes to things like sugar drops, fatigue, illness, injuries, pains, etc.). But in terms of recovery, schedule it in, take it.
I'm also in agreement: One week, you'll probably come back much stronger. Most do. Too long of a break and you may come back weaker....(you'll catch up, but be prepared).