My Green Mattress leads with a sitewide 17% off code that works on any order across the website. This code is the strongest flat discount available and suits anyone buying a new mattress or sleep accessories regardless of basket size.
Under $500 order. If you are spending less than $500, the 17% off code is your best choice. On a $300 order, for example, you save $51 and pay $249. The other percentage codes offer 10% off, which would save you $30 on the same order, so the 17% code wins.
$500 to $1000 order. The 17% off code remains the strongest option for most shoppers in this range. On a $700 order, the code saves you $119 and brings your total to $581. The sale markdown deals (up to $250 off organic mattresses, or up to 20% off selected sale items) may apply if you are buying marked down products, but those reductions are capped or limited to sale stock, whereas the 17% code takes 17% off your full selection. Stick with the code unless the sale section has the exact mattress you want.
$1000 and above. At higher order values, compare the 17% code against any full price sale markdowns. On a $1200 order, the 17% code saves you $204 and leaves you paying $996. If you are buying organic mattresses at full price, the up to $250 off offer may give you a bigger saving if the discount applies to your chosen mattress. Check which specific products the sale discounts cover before you decide, since the 17% code applies across everything and guarantees your 17% in any case.
Buying from the sale. If the mattress or accessories you want are already on sale, the 17% code cannot be combined with the Go Green Sale or other sale discounts according to My Green Mattress's terms. In that case, compare the sale price with what you would pay if you applied the 17% code to the full price instead. On an organic mattress marked down to $500 in the sale, applying the 17% code to the original $600 price would save you more overall than the sale price alone. The code applies across the full website, so use it for the biggest saving.
Choose the 17% off code as your starting point. It beats all other single offers on any full price mattress, and on sale items it likely beats the markdown alone unless a sale discount is explicitly larger.