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For this list, we mainly focus on how supportive beds are with two people at once. We take into account how mattresses perform in terms of motion isolation, edge support and temperature regulation. We also lie on the beds in each sleeping position to determine which sleeper types the beds are best for. 

The last thing you want for your relationship is a bad night's sleep, so it's crucial that you both find a supportive mattress that's sturdy along the edges, deadens motion well, and sleeps on the cooler side.

Read more on how we test mattresses.

Pressure relief: As we've mentioned in this list already, the best mattresses for couples provide support, but you also want pressure relief on top to provide comfort, but not too much. If you're both predominant side sleepers, a softer bed with more pressure relief will likely work for your relationship.

Firmness: Plush mattresses are usually more pressure-relieving than a firm mattress. If you're both back or stomach sleepers, a firmer mattress is probably the way to go for this situation. Couples should keep in mind that firmness is subjective based on how much you weigh.

Weight: Speaking of weight, this factor definitely comes into play for couples. If you're both on the heavier side, you'll want a hybrid mattress that offers plenty of support. Petite-sized couples can get away with sleeping on an all-foam bed, and more average-sized people can probably go either way. A general rule of thumb is to go the route of a hybrid mattress if you weigh over 200 pounds.

Health concerns: If you or your partner have any chronic health conditions, you should consult with your doctor before changing your mattress. For back pain, beds with a Zoned Support design help promote proper spinal alignment at night. For joint pain, more pressure-relieving beds usually help to cradle your pressure points more than an average mattress.