Save $100 on your next purchase at Big Mattress and enjoy a better night's sleep without breaking the bank.
Terms and conditions
Mattresses are reduced by up to 25% in the fall sale, limited time only.
Terms and conditions
Get up to $1,300 off your purchase at Big Mattress and enjoy free shipping on every order for a great deal on your new mattress.
Terms and conditions
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Here are some great tips & tricks for extra savings at Big Mattress:
Big Mattress accepts all major Debit & Credit cards.
Big Mattress ships within the United States.
Your ship confirmation email will contain a tracking number link that will allow you to check the status of your package.
They have a 100-day mattress return policy, which means you have 100 days after receiving your item to request a return.
All purchases are refunded via original payment methods.
support@bigmattressco.com
The Big Mattress $100 off promo code at the top of this page is the lead offer, and it is the easiest pick if you want a straight $100 off any website order. This promo code is best for lower to mid size purchases or when the mattress you want is not in the fall sale or the selected models that carry the larger $1,300 reductions.
Small orders and single items under $400. If your cart is around $300 to $400 and the mattress you want is not part of the fall sale or selected markdowns, use the $100 off promo code. For example, on a $400 order, the code takes $100 off, leaving you with $300, so you save $100.
Mid size orders and sale items (good candidate for the fall sale). If the mattress you want is marked as a fall sale item, the fall sale up to 25% off can save more once the percentage exceeds $100. For a sale mattress priced at $800, 25% off gives a $200 discount, which is bigger than the $100 promo code; the sale drops $800 to $600, so you save $200. If the sale price is $400, 25% off equals $100, matching the promo code for the same final price.
High end mattresses and selected models. For selected models that carry the up to $1,300 off deal plus free shipping, that public deal will usually beat the $100 promo when the product is eligible. On a $5,000 luxury model that is part of the selected list, the $1,300 reduction lowers the price to $3,700 and also gives free shipping. Compare that to the $100 promo code, which would reduce the same $5,000 to $4,900; the selected product deal saves more if the model is listed.
Newsletter signup as a first time or low spend option. Signing up to the newsletter is listed as a way to get special offers, but it is not the page lead. Use signup only if you want email offers for a future purchase; it is not an immediate replacement for the $100 promo code or the public sale prices.
Our records show Big Mattress had 26 sales and deals listed in the 12 months to October 2026, and the biggest percentage deal in that window was up to 25% off (November 2025). There are months with more new offers than usual, notably September 2026, but our records do not include any team checkout checks for Big Mattress in the 12 months to October 2026.
When choosing, calculate the final total for your specific mattress and take whichever option leaves the lower price. The $100 promo code is the safe choice for lower to mid size orders and any item not in the fall sale or the selected $1,300 reductions. If the mattress is in the fall sale and 25% of its price exceeds $100, take the sale price. If the mattress is one of the selected models with up to $1,300 off and free shipping, use that public deal instead. There is no stated rule on combining the offers, so assume you must pick the single best one for your cart.
