Deal guides
Research-first guides to promo codes worth trying, by category. Every code's sourcing is stated, and nothing is called verified until it passes a real checkout test.
- Mattress promo codes
Helix, Casper, Purple, Nectar, and why most mattress “deals” need no code at all.
- Eyewear promo codes
GlassesUSA, Zenni, EyeBuyDirect: big first-order discounts, and one brand to stop hunting codes for.
- Pet supplies promo codes
Chewy, PetSmart, Petco and the subscription brands: which codes last, and the auto-apply trap at Petco.
- DTC apparel promo codes
Rothy's, Bombas, Vuori, Allbirds and friends: where the welcome code lives and what it's worth.
How Discoball labels codes. A code is marked Verified only when its most recent logged checkout test passed. Everything else says Unverified. Each guide's code table is read live from our catalog, so it changes as tests land and codes expire.