Best Soft Mattress

• Side sleepers — Soft mattresses allow the shoulder and hip to sink in, preventing pressure points and maintaining spinal alignment. Side sleeper guide →
• Lightweight sleepers (under 150 lbs) — Lighter bodies don't compress mattresses as much. What feels "medium" to a 200-lb person may feel "firm" to a 120-lb person. Soft provides the necessary contouring for lighter frames.
• People with joint pain — Soft mattresses reduce pressure on joints (shoulders, hips, knees). The cushioning distributes weight more gently.
• Those who prefer the "cloud" feel — Some people simply prefer sinking into their mattress rather than sleeping on top of it. That's a valid comfort preference.

Who should avoid soft: Stomach sleepers (hips sink too deep), heavier sleepers over 230 lbs (excessive sinking, premature wear), and back sleepers who need lumbar support. See our firm mattress guide →

These terms are often used interchangeably, but they describe different things:

• Soft (3-4 on firmness scale) — The mattress itself is made with low-density, yielding materials. The entire feel is cushioned throughout.
• Plush (4-5) — Slightly firmer than soft. Has a pillowy surface but more supportive core. Most "plush" mattresses from major brands fall here. Shop plush →
• Pillow Top — A construction style where an extra cushion layer is sewn on top of the mattress. The base can be medium or firm with a soft top layer. Can be the best of both worlds — support underneath, softness on top. Shop pillow top →

Our recommendation: Plush or pillow top over truly soft. They provide the cushiony feel most people want while maintaining enough core support to prevent alignment issues.

Memory foam — The classic soft-feel material. Slow-sinking, contouring, body-hugging. The softest memory foam mattresses provide an enveloping sensation. Tempur-Pedic LuxeAdapt Soft is the premium option. Shop memory foam →

Plush hybrid — Thick foam comfort layers over pocketed coils. You get the soft surface feel with better airflow and edge support than all-foam. Stearns & Foster Lux Estate Plush is a standout. Shop hybrid →

Latex — Naturally responsive soft feel that bounces back faster than foam. Soft latex doesn't have the "stuck" sensation of soft memory foam. Good for people who want soft but responsive.

A mattress is too soft if:

• Your hips sink below your shoulders — This means the spine is curving downward, which causes lower back pain
• You have trouble changing positions — Excessive sinking makes it hard to roll over or get out of bed
• You wake with lower back pain — The mattress isn't providing enough support for your weight
• The mattress sags permanently — Soft materials can develop body impressions faster than firm ones

The fix: If your soft mattress is too soft, a firm mattress topper (1-2") can add support. If it's a new mattress within the 120-night comfort exchange, exchange it for a firmer model. When testing in store, lie on the mattress for 15+ minutes — initial softness can feel great but may become uncomfortable over time.