You know that mattress that just feels familiar in a good way? That’s this one. The 25cm Zinus Innerspring Comfort Mattress has that classic bounce, thanks to a layer of continuous coils underneath. It’s not super thick, but tall enough to give you a bit more cushioning than the 15cm model. There’s a soft foam top layer that smooths things out, so you’re not lying right on the springs — and it holds up well night after night. Good airflow, easy to unbox, and a solid option if you’re into a traditional feel without the weight of a massive mattress. Note on firmness rating: Mattress firmness ratings are a general guide, as how a bed feels depends on your body weight. Sleepers under 80kg sink in less, making mattresses feel slightly firmer, while anyone over 80kg presses deeper into the support layers for a softer feel. For couples, combined weight in shared areas means thinner mattresses compress more than they would under a single sleeper.