Best mattress for couples. There's a lot of those.
You know, I highly recommend a Simmons Beautyrest. They've got individual pocketed coils. It prevents motion transfer.
Some of the Stearns & Foster mattresses have coils that prevent motion transfer.
Motion transfer is one person tossing and turning a bit on this side of the mattress. And if you have a mattress that has limited motion transfer, like a Simmons Beautyrest or Stearns & Foster, it won't transfer to the other person.
So if they toss and turn, the person over there will never feel it.
Get a mattress that limits motion transfer.
Tempur-Pedics are wildly successful with couples. They also limit motion transfer.
