What's inside the Sedona Zafu, and can I adjust how firm it feels?
It is filled with buckwheat hulls rather than foam or polyester fiber, held in an inner liner that unzips so you can add or remove hulls. Retrospec rates it firm out of the box. That firmness is divisive: just right for grounding for some, too hard for others, and taking out some hulls is the fix.
How big is it, and will it feel too small?
It measures 17 x 10.5 x 5.5 inches in a crescent shape. Size is divisive: it is a nice size for some and smaller than expected for others. It works as a meditation seat and as a floor seat at a coffee table, and how tall it feels depends on how full you keep the fill.
What's the cover made of, and is it washable?
The cover is 100% cotton, removable and machine washable, which matters because the buckwheat itself cannot be washed. The fabric is heavy and hard-wearing, and the Basil green is an appealing color.
Is this actually good for back support or physical therapy use, or just a meditation prop?
Retrospec designs it for both. It is sold as a yoga bolster for recovery as well as a meditation cushion, and pitched as physical therapy equipment or exercise support. It gives good support for the lower back and posture, and it also works behind your back in bed or as a floor seat. For specific therapy exercises, follow your therapist's advice on how to use it.
Is the Sedona Zafu worth the money?
For most people, yes. It is high quality and sturdy, and value for money is one of its strengths. The main reasons to hesitate are firmness and size, both of which are divisive, so be ready to adjust the fill and check the measurements first.
What's the warranty, and what should I know before buying?
Retrospec backs it with a one-year limited warranty. Before buying, know that it ships firm and some find it too hard until they remove hulls, some find it smaller than expected, and it is a little bulky and heavy to carry far. For home use, that is a fair trade for the support.