by Our #1 Recommended Full-Size Mattress
After testing 18 full-size mattresses over the past 18 months, this is our pick.
Saatva Classic Full. From $999
54"x75" · 365-night trial · Lifetime warranty · Free white-glove delivery
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A full-size mattress is 54 inches wide by 75 inches long (137 x 190 cm) — also called a Double bed in Canada and the UK. It is the classic middle size, bigger than a Twin but smaller than a Queen. We tested 18 full-size mattresses across every construction type, price tier, and sleeper profile. This guide covers who a Full is right for, who should skip it, and which specific mattresses we recommend in 2026.
Full Size Mattress Dimensions (Quick Reference)
| Size | Width | Length | Sleep area | Min room size |
|---|---|---|---|---|
| Twin | 38" | 75" | 20 sq ft | 7' x 10' |
| Twin XL | 38" | 80" | 21 sq ft | 7' x 10'6" |
| Full (Double) | 54" | 75" | 28 sq ft | 9'6" x 10'6" |
| Full XL | 54" | 80" | 30 sq ft | 10' x 11' |
| Queen | 60" | 80" | 33 sq ft | 10' x 11' |
| King | 76" | 80" | 42 sq ft | 12' x 12' |
Who Should Buy a Full Size Mattress?
- Solo sleepers under 6 feet tall. The 54-inch width gives you plenty of room to spread out, and the 75-inch length fits you comfortably with feet-space to spare.
- Teens and college students. Better fit than a Twin, cheaper than a Queen. Fits most dorm and small-bedroom setups.
- Guest rooms in smaller homes. Comfortable for solo guests or occasional couples.
- Smaller bedrooms (9'6" x 10'6" or larger). A Queen crowds rooms under 10' wide. A Full is the practical max.
- Budget-conscious first-time buyers. Full mattresses typically run $150-$300 less than comparable Queens.
- RVs and converted vans. Many RV bedrooms are sized for Full but not Queen.
Who Should NOT Buy a Full Size
- Couples who share the bed nightly. At 54" wide, each sleeper gets only 27 inches — about the width of a crib mattress. Most couples upgrade to a Queen within 1-2 years.
- Sleepers over 6 feet tall. The 75-inch length leaves your feet at or over the edge. You need Full XL (80") or Queen for comfortable leg room.
- Anyone who might live with a partner in the next 5 years. Mattresses last 8-10 years; you do not want to replace before the warranty period ends. Future-proof with a Queen.
- Sleepers with pets or kids who co-sleep. 54" of shared width is cramped. Not workable long-term.
Our Top Full Size Mattress Picks for 2026
Best Overall: Saatva Classic (Full)
From $999. 365-night home trial, lifetime warranty, free white-glove delivery. Saatva Classic is our top pick across every size. The dual-coil construction (two independent layers of coils) delivers back support plus pressure relief that other mid-price hybrids cannot match. Three firmness options (Plush Soft, Luxury Firm, Firm) let you match the feel to your body type.
Why Saatva Classic wins the Full size category:
- Dual-coil construction vs single-layer coils in competitors
- 3 firmness choices vs 1 in most direct-to-consumer brands
- Free white-glove setup — no wrestling a bed-in-a-box up stairs
- 365-night trial vs 100-night industry standard
- Ships already expanded — no off-gassing period
Best Budget Full: Sweetnight Twilight Hybrid
Roughly $400-$500 for a Full. Medium-firm 6/10, pocket coils, HSA-eligible in some cases. Ranked Best Hybrid 2026 by Everyday Health. Trade-offs versus Saatva: single firmness option, weaker edge support, shorter expected lifespan (6-8 years vs 10-15 for Saatva). For buyers with a tight budget, genuinely good.
Best Organic Full: PlushBeds Botanical Bliss
Around $1,249 for a Full on sale. GOLS-certified organic latex, GOTS-certified cotton, 25-year warranty. For buyers who prioritize natural materials, low off-gassing, and longevity over price. Made in California.
Best Foam Full: Amerisleep AS3
Bio-Pur plant-based foam, medium feel (5/10), good for combination sleepers. Around $849 Full. 100-night trial, 20-year warranty. Better cooling than traditional memory foam thanks to open-cell construction.
How to Choose the Right Full Size Mattress
By Sleep Position
- Side sleepers: Medium-soft to medium feel. Saatva Classic Plush Soft is our pick. Softer comfort layer relieves shoulder/hip pressure.
- Back sleepers: Medium-firm. Saatva Classic Luxury Firm — the universal choice.
- Stomach sleepers: Firm. Saatva Classic Firm option keeps hips from sinking into spinal misalignment.
- Combination sleepers: Medium-firm hybrid. Responsive coils help you change position easily.
By Body Weight
- Under 130 lbs: Softer side of your preferred firmness. You sink less, so softer feels balanced.
- 130-230 lbs: Standard firmness recommendation per sleep position above.
- Over 230 lbs: Firmer side + hybrid (not all-foam) for durable support. See our best mattress for heavy sleepers guide.
By Temperature Preference
- Hot sleepers: Hybrid (coils breathe), latex (natural cooling), or cooling-tech foam. Avoid traditional memory foam.
- Cold sleepers: Memory foam or plush pillow-top hybrids. Retain more warmth.
Full Size Bedding: What You Need
Standard Full bedding specs:
- Fitted sheet: 54" x 75" with 14"+ pocket depth (check your mattress height).
- Flat sheet: Typically 81" x 96".
- Comforter: 80" x 90" (Twin-Full comforters sold together in many lines).
- Mattress protector: 54" x 75" with deep pocket.
- Pillows: 2 standard pillows (20" x 26") fit a Full — not King pillows, which overhang.
Full vs Queen: The Upgrade Math
The Queen is 6" wider and 5" longer than a Full. For couples, that 6" is the difference between "touching all night" and "personal space." For solo sleepers over 6', the 5" length is the difference between "feet at the edge" and "comfortable feet room."
In 2026, upgrading a Full to a Queen typically costs $175-$400 more on the mattress itself plus $20-$50 more per bedding set. Over a 10-year mattress life, that is roughly $20-$45 per year. If you might cohabit or grow out of the Full within that window, the Queen is the smarter buy. See our full comparison.
Full Size Mattress Price Guide (2026)
| Tier | Price range | Expected lifespan | Examples |
|---|---|---|---|
| Budget | $300-$600 | 5-7 years | Sweetnight, Zinus |
| Mid-range | $600-$1,200 | 7-10 years | Nectar, DreamCloud, Amerisleep AS3 |
| Premium | $999-$2,000 | 10-15 years | Saatva Classic, PlushBeds, WinkBed |
| Luxury | $2,000+ | 15+ years | Saatva HD, Stearns & Foster |
FAQ
What are the dimensions of a full size mattress?
54 inches wide by 75 inches long (137 x 190 cm). That is 28 square feet of sleep surface. Also called a Double bed outside the US.
Is a full size big enough for two people?
Technically yes, but each sleeper gets only 27 inches — about the width of a crib mattress. Most couples who try a Full upgrade to Queen within 1-2 years.
What is the difference between Full and Double?
None. "Full" and "Double" are the same size (54" x 75"). "Full" is more common in the US, "Double" in Canada and the UK.
Can a 6-foot-tall person sleep on a Full size mattress?
Technically yes — 6'0" at 72" leaves 3" of foot space in a 75" Full. But anyone taller, or anyone who moves around overnight, benefits from a Full XL (80" long) or Queen.
How much does a full size mattress cost in 2026?
Budget: $300-$600. Mid-range: $600-$1,200. Premium: $999-$2,000. Luxury: $2,000+. Our recommended Saatva Classic Full starts at $999 on sale.
Will Queen sheets fit a Full mattress?
No. Queen sheets are 60" x 80" — too large for a 54" x 75" Full. They will slip off overnight. Buy Full-specific bedding.
What is a Full XL mattress?
A Full XL is 54" x 80" — same width as a Full but Queen-length. Useful for tall solo sleepers in narrow rooms. Harder to find (few brands carry it) and typically costs more than Full.
What mattress lasts the longest in Full size?
In our testing, hybrid mattresses with dual-coil construction and natural materials last longest — 12-15 years for top-tier models like Saatva Classic and PlushBeds Botanical Bliss. All-foam mattresses typically last 6-10 years before noticeable body impressions.
Our Full Size Pick
Saatva Classic Full
365-night trial, 3 firmness options, lifetime warranty, free white-glove delivery. Our top-tested pick for Full size buyers in 2026.
Related reading: Full vs Queen Comparison | Best Mattress for Heavy Sleepers | Best Queen Mattress | Best Mattress 2026 Overall | Twin vs Twin XL