Is this mattress good for side sleepers?

It is medium, so lighter side sleepers may be fine, but many side sleepers want a softer top layer than an 8-inch hybrid gives. Heavier side sleepers should look at a thicker mattress with more foam.

Will it work on a bunk bed or trundle?

Yes. The 8-inch height is one of its main advantages for bunks, trundles and low platform frames where a deep mattress will not fit or sit too high.

Does it need a box spring?

It works on a platform bed, slatted frame or box spring. A solid or closely spaced slatted base protects the pocket springs better than wide gaps.

How does it compare with a thicker hybrid?

Thicker hybrids add more foam and stronger edges, which helps heavier sleepers and couples. This one trades that cushioning for a low profile and a simpler build.

Is it good for couples?

Pocket springs reduce motion transfer, which helps. But a king in this thin build has soft edges, so couples who sit on the edge or want plush comfort may prefer a thicker model.