What are the benefits of a spring mattress?

An innerspring mattress may feel more or less supportive based on coil type, gauge, total coil count, and overall design. If you like sleeping on rather than in a mattress, consider an innerspring; Choice's tests found spring mattresses can feel bouncier or less stable, can transfer that feel to someone sharing the bed, and can vary even within one brand.

Traditional innersprings have thin comfort layers, which can mean less surface heat retention. For a traditional innerspring, check whether it has a thin layer of padding beneath the cover.

Coils contract and expand in response to pressure, giving coil-based mattresses notable bounce. Coil mattresses are generally easier to move around on than all-foam beds. You can lie on a mattress in a store to get a feel for your comfort level.

Innerspring mattresses can provide strong edge support that may help people who have trouble getting in or out of bed. Some manufacturers add low-gauge coils around the perimeter to strengthen that support. Ideal Home's edge-support test checks how much the mattress dips when someone sits or lies at the edge.

A queen-size innerspring or hybrid can have 400 to 1,200 coils.

Bonnell coils

Bonnell coils are fairly firm and generally have reliable edge support, though they can be prone to sagging in the center. Bonnell coils are hourglass-shaped, with a round, knotted head.

• Check the coil style alongside the listed count on a queen-size innerspring or hybrid.
• Use the shape description to identify Bonnell coils in a product listing.

An innerspring consists mainly of a coil system and may have a thin comfort layer; hybrids are described as aiming for a balanced feel from multiple components.

Innerspring

An innerspring may have a thin comfort layer.

• If surface heat matters, check whether the listing describes a thin padding layer beneath the cover.
• Compare coil type, gauge, total count, and overall design because these can affect support.

Hybrid

Sleep Foundation describes hybrids as cultivating a balanced feel by seeking positives from multiple components while minimizing their negatives.

• Ask which components the model uses before judging its feel.
• If the description lists a coil system, compare its coil type, gauge, count, and overall design for support.

A topper is meant to change the sleep surface feel to improve comfort.

Toppers

Use a topper when your goal is a different surface feel.

• Decide what surface feel you want to change before choosing.
• Check whether changing the surface feel matches your comfort goal.

The available guidance gives side sleepers a firmness range and a spine-positioning cue, but it does not set recommendations for every sleep position; check firmness and contouring against how you sleep. The review reports no statistically significant pain reduction among the groups it observed.

Side sleepers

Sleep Foundation says side sleepers usually prefer medium-soft (4) to medium-firm (6) mattresses to cushion the hips and shoulders.

• Compare mattresses in that firmness range for contouring pressure relief at the hips and shoulders.
• Avoid a mattress that feels too firm, since it may not provide enough cushioning.

Back sleepers

Costco recommends medium to medium-firm support with light contouring to help keep the spine properly positioned.

• Check for both support and light contouring in the product description.
• If comparing coil models, look at coil type, gauge, count, and overall design because these affect support.

Pocketed coils can reduce motion transfer because each coil moves independently; traditional interconnected coils can transfer substantial motion between partners. Tom's Guide calls motion isolation important for couples and tests it by dropping a 5 kg ball on one side while measuring acceleration on the other.

• If a bed partner is sensitive to movement, compare pocketed coils with traditional interconnected coils.
• Ask how motion isolation was checked if a retailer claims it limits movement.

A mattress’s durability depends on materials in both comfort layers and the support core, not just its coils. Brooklyn Bedding says slats spaced more than 5 inches apart are improper support and void its warranty, so check the spacing against that policy.

A showroom visit gives an initial comfort check, but it cannot show how a mattress performs over time.

1. Sit or lie on the mattress to get an initial sense of comfort.
2. Consumer Reports recommends spending at least 10 minutes on each model you are considering.
3. For back support, lie on your back and focus on your spine.

Does a higher coil count mean better support?

Not necessarily: a higher count does not guarantee sturdiness or durability. Wire quality, tempering, coil height, gauge, shape, and turns also affect how firm and supportive coils feel. Choice says its testing has not found a link between higher spring counts and improved performance.

Does a spring mattress need a box spring?

A platform bed can support a mattress without an added box spring. For a Brooklyn Bedding mattress, check that platform slats are no more than 5 inches apart, an acceptable support option the company lists.

Are lower-cost spring mattresses worth buying?

Choice's advice does not establish whether lower-cost spring mattresses are worth buying; when visiting different retailers, ask each for the same specific model.

We read 18 published pages from 9 sites (Sleep Foundation, choice.com.au, idealhome.co.uk, originalmattress.com and 5 more), checked in October 2026. Every sentence in the answers above cites one of them; the offer card at the end names its own source. This page reports published sources only; we did not test mattresses in person.