The Best Mattresses for Heavy People Available to Buy in 2025

Our team of nine mattress experts has been doing this for years. We’ve tested and reviewed around three hundred mattresses and dozens of sleep accessories, from bedding to toppers to headphones for sleep. During that time, we’ve established a testing methodology that each mattress undergoes when it arrives at our Reno testing facility. We take a holistic approach to mattress testing, which means our team is involved to ensure we’re representing all types of people. Our team has a mix of genders, body types and sleeping positions. CNET mattress expert Owen Poole tests motion isolation using a glass of water. Aly Lopez/CNET Firmness We rate and record two types of firmness: Subjective and objective. When I test firmness, I lie on the mattress in every sleeping position and note how it feels against my back, stomach and hips. Our whole team takes part in this process to ensure that the firmness rating is not based on one body type. The Mattress Smasher 9000 objectively measures the f ... Read full article.