Is this mattress good for side sleepers?

It is a firm foam bed, which many side sleepers find too hard on the shoulder and hip. Side sleepers usually do better on a medium or plush mattress.

Does it need a box spring?

An all-foam mattress like this works on a flat, solid foundation or a slatted frame with close slats. A box spring is optional and mainly adds height.

What size is the California King?

A California King is 72 inches wide by 84 inches long. It is narrower but 4 inches longer than a standard King, which suits taller sleepers.

Is $873.85 a good price?

It is the only new price listed as of November 8, 2026, at The Home Depot, so there is no competing quote to measure it against. Compare it with other firm California King foam beds before deciding.

How firm is it really?

Serta labels it Firm, the hardest of the usual comfort levels. Expect a flat, supportive surface with little sink.

Does it come with a warranty?

Serta typically backs its mattresses with a limited warranty, but the terms vary by model. Confirm the coverage for this model with the seller before buying.