Shomp checks Plank Mattress for new sales every morning. Shomp is not associated with or endorsed by Plank Mattress.
- 25–30%
- Typical advertised discount · best seen 35%
- 90%
- Days with sales · 74 of 82 checked in 90 days
- 9 days
- Longest observed gap · last 90 days
Last sale observed Oct 7, 2026. Check the store for current availability.
Shop storeSale history
69 sale periods from the last 90 days
Past offers are shown for reference. Store links open the homepage.
Up to 30% offAnniversary Sale — 30% off sitewide (use promo code ANNI30)1 day
Up to 25% off25% off sitewide — use promo code ANN1251 day
Up to 25% offAnniversary Sale — 25% off sitewide (use promo code ANNI25).1 day
Up to 25% offAnniversary Sale — 25% off sitewide with promo code ANNI25.1 day
Up to 25% off25% off sitewide — use promo code ANNI25.1 day
Up to 25% offAnniversary Sale: 25% off sitewide (use promo code ANNI25)1 day
Up to 25% off25% off sitewide with promo code ANNI251 day
Up to 25% offAnniversary Sale: 25% off sitewide with promo code ANNI251 day—
Up to 25% offAnniversary Sale — 25% off sitewide (use promo code ANNI25).1 day
Up to 25% off25% off sitewide with promo code ANNI25.1 day
Up to 25% off25% off sitewide — use promo code ANNI251 day
Up to 25% offAnniversary Sale: 25% off sitewide (use promo code ANNI25)1 day
Up to 25% offAnniversary Sale — 25% off sitewide with promo code ANNI251 day
Up to 25% off25% off sitewide — use promo code ANNI251 day—
Up to 25% offAnniversary Sale — 25% off sitewide (use promo code ANNI25)1 day
Up to 25% off25% off sitewide — use promo code ANNI251 day
Up to 25% offSitewide sale: 25% off with promo code ANNI251 day
Up to 25% off25% off sitewide with promo code ANNI252 days
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25)2 days
Up to 25% offLabor Day sale — 25% off sitewide with promo code LABORDAY251 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25).1 day
Up to 25% off25% off sitewide — use promo code LABORDAY25.1 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25)1 day
Up to 25% offLabor Day Sale — 25% off sitewide with promo code LABORDAY251 day
Up to 30% offLabor Day sale — 30% off sitewide with promo code LABORDAY30.1 day
Up to 30% offLabor Day/sitewide sale — 30% off sitewide with promo code LABORDAY301 day
Up to 30% offLabor Day Sale: 30% off sitewide — use promo code LABORDAY30.1 day
Up to 30% offLabor Day sale — 30% off sitewide with promo code LABORDAY301 day
Up to 30% off30% off sitewide — use promo code LABORDAY301 day
Up to 30% offLabor Day sale — 30% off sitewide with promo code LABORDAY301 day
Up to 30% offLabor Day Sale: 30% off sitewide (use promo code LABORDAY30)1 day
Up to 30% offLabor Day sale — 30% off sitewide (use promo code LABORDAY30)1 day
Up to 30% offLabor Day Sale: 30% off sitewide.1 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25).1 day
Up to 25% offLabor Day sitewide sale — 25% off sitewide with promo code LABORDAY251 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25)1 day
Up to 25% offLabor Day Sale: 25% off sitewide (use promo code LABORDAY25)1 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25)1 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25)1 day
Up to 25% offLabor Day Sale — 25% off sitewide (use promo code LABORDAY25).1 day
Up to 25% offLabor Day Sale: 25% off sitewide (use promo code LABORDAY25).1 day
Up to 25% offLabor Day Sale: 25% off sitewide (use code LABORDAY25)1 day
Up to 25% offBack to School sale — 25% off sitewide (use promo code SCHOOL25).1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% offBack-to-School Sale — 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% offBack to School Sale — 25% off sitewide (use code SCHOOL25)1 day
Up to 25% offBack to School Sale: 25% off sitewide (use promo code SCHOOL25).1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25).1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% offBack to School Sale: 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% off25% off sitewide — use promo code SCHOOL251 day
Up to 30% offFlash Sale: 30% off sitewide (use promo code FLASH30)1 day
Up to 30% offFlash Sale: 30% off sitewide — use promo code FLASH30.2 days
Up to 30% offFlash Sale — 30% off sitewide (use promo code FLASH30)1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% offBack to School Sale — 25% off sitewide with promo code SCHOOL25.1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25).1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)2 days
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)1 day
Up to 25% offBack to School Sale — 25% off sitewide (use code SCHOOL25).1 day
Up to 25% offBack to School Sale: 25% off sitewide (use promo code SCHOOL25).1 day
Up to 25% offBack to School Sale — 25% off sitewide (use promo code SCHOOL25)2 days
Up to 25% offBack to School Sale — 25% off sitewide (use code SCHOOL25).1 day
Up to 25% offSummer Sale — 25% off sitewide with promo code SUMMER25.1 day—
Up to 25% offSummer Sale — 25% off sitewide with promo code SUMMER251 day—
Up to 25% off25% off sitewide — use promo code SUMMER251 day
Up to 25% offSummer Sale — 25% off sitewide (use promo code SUMMER25)1 day—
Up to 25% offSummer sale — 25% off sitewide with promo code SUMMER25.1 day—
Plank Mattress seasonal sale history
Explore recorded dates, offers, and snapshots for each event.