Is the Sealy Hybrid HD good for side sleepers?

Yes. The memory foam and gel foam layers cushion the shoulders and hips, which side sleepers tend to need. Choose the soft feel if you want more give, or medium for more support.

What is the difference between the medium and soft versions?

Both use the same coil core and foam layers, but the soft version has more plush cushioning on top. Medium suits most back and combination sleepers; soft suits lighter side sleepers.

The coil core allows more airflow than an all-foam mattress, so it tends to sleep cooler than dense foam beds. The foam layers still retain some heat, so hot sleepers may want a breathable mattress protector.

How does it compare with an all-foam mattress?

It has more bounce and easier movement across the surface, and the coils give better edge support than most foam beds. All-foam beds generally absorb motion better.

Is it a good choice for couples?

The medium feel works for many couples, and the coils make it easier to move around. Heavier sleepers may find the soft version too plush, and motion transfer is higher than on foam.