Question 1

What is the best foam mattress?

Accepted Answer

The Nectar Premier and the Tempur-ProAdapt lead our foam-mattress rankings. Both produced under 28 mmHg of peak shoulder pressure for our 165 lb side sleeper (vs. the 32 mmHg capillary-closure threshold) and both scored above 8.5/10 on motion isolation. Nectar wins on value; Tempur wins on long-term durability and material quality.

Question 2

Is memory foam better than spring?

Accepted Answer

For solo sleepers, side sleepers, and motion-sensitive couples — yes. Memory foam beats springs decisively on pressure relief and motion isolation. For combination sleepers, hot sleepers, and heavier sleepers (230+ lb), hybrids and innersprings are usually the better choice. Match the construction to the sleeper, not the other way around.

Question 3

How long do foam mattresses last?

Accepted Answer

Quality memory foam (4 lb/cu ft density or higher) lasts 7–10 years before noticeable sag. Cheap memory foam (under 3 lb/cu ft density) often shows body impressions within 18 months. The density spec is the single best predictor of lifespan — if a brand will not disclose foam density, assume it is low.

Question 4

Do foam mattresses sleep hot?

Accepted Answer

Traditional all-foam mattresses run measurably warmer than hybrids in our infrared lab — typically 2–4°F higher peak surface temperature over an 8-hour session. Modern foam constructions (copper-infused, gel-infused, open-cell) partially close this gap but rarely match hybrid airflow. Hot sleepers should default to hybrid.

9 Best All-Foam Mattresses (2026), After 600 Hours of Testing