It’s rare for couples to weigh the same and mattress brands know this, so finding a mattress that fits both of you shouldn’t be difficult. If you are a petite person and your partner is average-sized or overweight, the best option is to get a split king mattress. This way, you and your partner can each choose a mattress to fit your needs for your half of the bed. If this is not an option—perhaps due to your budget or the size of your living space—another possibility is to get a medium mattress. Medium mattresses offer the best balance of support and cushioning, thus making them the best beds for couples with different needs.