Original verdict: The Silk Symphony Ben reviewed offered two distinct feels in one all-foam mattress: a plush side and a much firmer reverse. He preferred the softer side. This is a historical review of that specific model; confirm availability and current terms before shopping.
BedInABox’s Silk Symphony stood out because flipping the mattress changed which comfort layers were under the sleeper. That let a household choose between two feels, though both people sharing one mattress still slept on the same side.
What Ben found in the original test
Ben first tried the softer side and found it plush while still feeling supported. To show the difference, he placed the same 14-pound bowling ball on each side. It sank noticeably farther into the soft side; the firm side had much less visible sink. The demonstration helps compare those surfaces, but a bowling ball does not reproduce a person’s body or predict every sleeper’s comfort.
How the reviewed mattress was built
The original manufacturer specifications described a silk-blend quilted cover, a 3-inch gel memory foam layer on the softer side and an 8-inch support foam core. The reverse had a flatter stitched cover and a firmer quilted layer. These details describe the model reviewed in 2018, not an assurance about any current BedInABox product.
Ben unzipped the reviewed mattress to inspect the layers. Owners should follow their own mattress’s care instructions and should not open or remove a cover unless the manufacturer says it is safe to do so.
Motion and temperature
The original review included a motion demonstration, and the restored review described low motion transfer for the all-foam construction. Ben also observed that the mattress slept fairly cool for an all-foam bed. These are impressions of the older test sample, not a guarantee for other sleepers or a measured result for a current model.
Watch the original videos
The original demonstrations provide a closer look at the mattress and its response.
Watch the second original Silk Symphony demonstration.
Can you still buy the Silk Symphony?
The original model is not listed in the current BedInABox mattress collection we checked. We cannot verify availability of the exact two-sided version. Treat the historical queen price, trial and warranty in the original article as historical—not as current terms.
If you are shopping for a similar feel, verify whether a candidate mattress is actually flippable, what each side contains, and the current return policy. A mattress that is merely rotatable is not necessarily designed to be slept on upside down.
Frequently asked questions
Can each partner use a different firmness?
Not on a single one-piece mattress: both sleepers use whichever side faces up. Separate split mattresses are a different arrangement.
Which side did Ben prefer?
In the original test he preferred the softer side. Your preference may differ based on position and body size.
Is the original price still valid?
It was a historical price for the reviewed model. Check current listings and terms directly before buying.
Compare this mattress against 142 tested mattresses
Sort all 142 mattresses we have tested by pressure relief, support, cooling, motion isolation, edge support, price, trial and warranty, then filter by how you actually sleep. Of those, 84 hold a complete standardized record and 41 a partial standardized record.