Worth buying during Labor Day sales:
Mattresses, 20-40% off. This and Presidents' Day are the two best mattress weekends of the year.
Patio and outdoor, 40-60% off, and that window holds through October.
Sofas, dining sets and bedroom furniture run around 10-15% this weekend. The deeper markdowns on those come with the inventory changeovers - January and February for sofas and dining, July and August for bedroom, at 25-50%. Worth knowing, unless you find a store running a real event or pop-up, where the floor deals can beat the calendar.
Floor models are 25-50% off any time of year, because that specific piece needs to leave. If you find one this weekend, the discount is real.
One logistics note: clearance and floor-model pieces are usually cash and carry, and you have about 24 hours to get it out. Everything else is quoting six to eight weeks on upholstered right now, because sale weekends are when the delivery calendar fills.