The Saatva Classic ships in three firmness levels — Plush Soft (3 on the 10-point scale), Luxury Firm (5.5–6.5), and Firm (8) — at the same price. Picking the right one matters more than any other Saatva decision because returning a Saatva mattress costs you a $99 transportation fee per direction. This guide eliminates the guesswork.
PLUSH SOFT (3/10). Despite the name, Plush Soft is not as soft as a typical foam plush mattress. It has a Euro pillow top with thicker padding over the same coil system. Best for: side sleepers under 150 lbs who specifically want pressure relief on shoulders and hips. Avoid if: you weigh over 180 lbs (you'll bottom out into the firmer support core), you sleep on your back or stomach, or you have any low-back pain.
LUXURY FIRM (5.5–6.5/10). The bestseller and the safest pick for ~70% of buyers. Saatva markets it as "medium-firm" but our pressure-mat testing puts it at the soft end of medium-firm — comfortable for back, side, and combination sleepers in the 130–230 lb range. Best for: back sleepers, combination sleepers, side sleepers over 150 lbs, anyone with mild-to-moderate low-back pain, couples with mixed preferences.
FIRM (8/10). True firm with minimal sinking and a flatter pillow top. Best for: stomach sleepers, sleepers over 230 lbs in any position, anyone with severe lumbar issues who needs maximum support, or sleepers who specifically prefer a "floating on top" feel. Avoid if: you have shoulder or hip joint sensitivity (the firm support is unforgiving on side-sleeping pressure points).
BY SLEEP POSITION. Side: Plush Soft if under 150 lbs, Luxury Firm if 150–230 lbs, Firm if over 230 lbs. Back: Luxury Firm regardless of weight unless over 250 lbs (then Firm). Stomach: Firm at any weight. Combination: Luxury Firm covers 90% of combination sleepers — only switch to Firm if you spend more than half the night on your stomach.
BY EXISTING PAIN. Low-back pain: Luxury Firm or Firm — never Plush Soft (the deeper sinking flattens the lumbar curve). Hip pain: Plush Soft if under 180 lbs, Luxury Firm if heavier — the Euro pillow top relieves trochanteric pressure. Shoulder pain: Plush Soft if a side sleeper under 180 lbs, otherwise Luxury Firm. Sciatica: Luxury Firm — best balance of support and pressure relief.
HOW SAATVA'S FIRMNESS COMPARES TO OTHER BRANDS. Saatva Luxury Firm is roughly equivalent to Helix Twilight, WinkBed Medium, or DreamCloud Premier at "medium." Saatva Firm is firmer than Helix Dawn or WinkBed Firmer. Saatva Plush Soft is firmer than a Helix Sunset Luxe or Nectar Premier — Saatva's "plush" is still anchored by an innerspring, so it never feels true-foam soft.
BREAK-IN CONSIDERATION. All three firmnesses soften by 0.5–1 point during the first 30 nights as the comfort layers compress. If you're between firmnesses, choose the firmer option — softening is one-directional and irreversible.
WHAT TO DO IF YOU PICKED WRONG. Saatva offers a 365-night home trial but charges $99 per delivery for returns or exchanges. Use the first 30 nights deliberately: keep a sleep log, test multiple positions, and compare to your prior mattress. Most regret happens when buyers exchange too early (week 1–2) before the break-in completes. Read our sleep trial guide for the structured protocol.
OUR DEFAULT RECOMMENDATION. When in doubt, choose Luxury Firm. It's the safest pick across the widest range of sleepers, the lowest exchange-rate firmness in Saatva's data, and the firmness our quiz returns most often for Saatva-eligible profiles.