Yoga bed offers some pretty great discounts. They can be used at https://www.yogabed.com/.
Here are 2 Yoga bed coupons
$50 discount: SMR50
$60 discount MCSS60
Click here to find out more about the yogabed.
More Yogabed info
Their twitter is https://twitter.com/yogabedmattress?lang=en.
Check out how the mattress industry has changed over time.
A good review