Is the Serta Clarks Hill good for side sleepers?

Yes. The plush Euro top gives extra cushioning at the shoulder and hip, which side sleepers usually want. Stomach sleepers and heavier adults may find it too soft.

What size is this mattress?

This listing is Twin XL, 12.5 inches thick, which fits dorm beds and adjustable bases. The Clarks Hill line is also sold in other standard sizes.

Does it need a box spring?

It works on a box spring, a platform bed or an adjustable base. A slatted platform or box spring supports the pocket springs better than a bare floor.

How does the Euro top differ from a pillow top?

A Euro top is sewn flush with the mattress edge rather than stitched on as a separate pillow layer. It gives a softer surface with a cleaner edge, though the extra cushioning can compress over time.

Is $600 a good price for a Twin XL?

It is a mid-range price for a plush spring mattress in Twin XL. With only one store listed at $600 as of November 8, 2026, check back for seasonal sales before buying.