How firm is the Bestier 12-inch hybrid?

It is a medium feel: a soft pillow top over gel foam and pocketed coils. Most side and back sleepers find it comfortable; strict stomach sleepers may want firmer.

Does it need a box spring?

No. It works on a slatted frame, platform bed or adjustable base. A box spring is optional and mainly adds height.

How long until it fully expands?

It usually takes a few hours to reach most of its height and up to a day or two to fully expand. Sleeping on it the first night is fine.

Is it good for hot sleepers?

Better than all-foam mattresses because the coil layer moves air and the gel foam is meant to limit heat. It still sleeps warmer than a latex or innerspring bed.

Does it come with a warranty?

No written warranty is listed. Confirm coverage with the seller before buying, since hybrid coils and foam can fail over time.

Will two people feel each other move?

Pocketed coils limit motion transfer better than a traditional innerspring, but the soft top lets some movement through. Light sleepers may still notice a partner shifting.