Best mattresses of 2025: Otty, Simba and Ikea Valevåg top nine tested picks

The Guardian's mattress tester and a family panel turned the reviewer's home into a showroom to sleep-test nine bestselling bed‑in‑a‑box mattresses for 2025, covering two pocket‑sprung models, six hybrids and one all‑foam option. The testers each slept on allocated mattresses for at least two weeks and used measures such as the Pittsburgh Sleep Quality Index, smartwatch tracking, dumbbell weights for sinkage, infrared thermometers for cooling and a glass‑of‑water test for motion isolation.

The reviewer also checked environmental credentials, customer‑service records and third‑party reviews, and excluded mattresses with significant delivery or service complaints. Three standouts were named: the Otty Original Hybrid as best overall for its balance of edge‑to‑edge support, cushioning and breathability (review panel comfort average 8.3/10); the Simba Hybrid Pro as best for couples for its strong motion isolation and plush surface (comfort average 8.1/10), albeit at a higher price; and the Ikea Valevåg as the best budget pick for its fast expansion, light weight and excellent breathability, though it offered less motion isolation and a lower firmness score (6.8/10).

Key Topics

Health, Otty Original Hybrid, Ikea Valevåg, Smartwatch, Pocket-sprung