A full (double) mattress at 54″ x 75″ is the sweet spot for solo sleepers with limited space, teens who’ve outgrown a twin, or smaller guest rooms. Amazon has excellent full mattresses well under $300 — here are the picks worth buying.
Prices approximate — always verify on Amazon.
1. Zinus Green Tea 12″ Full — Best Overall Full Under $300
⭐ 4.4/5 (68,000+ reviews, all sizes) | Est. Full Price: ~$180–$240 | Also: Twin–Cal King
The full version of Amazon’s best-selling mattress. At $180–$240, a 12-inch full mattress with this quality and review base is an unbeatable deal. Ideal for teens, solo sleepers, or guests who deserve more than a thin budget mat.
Pros: 12″ depth for real comfort · 68k+ reviews · Green tea odor control · Excellent value vs. queen price
Cons: All-foam sleeps warmer · Soft-medium feel
Check Zinus 12″ Full on Amazon →
2. Linenspa 8″ Hybrid Full — Most Affordable Full
⭐ 4.3/5 (90,000+ reviews, all sizes) | Est. Full Price: ~$100–$140 | Also: Twin–King
Under $140 for a full hybrid mattress is remarkable. Firm innerspring base with foam top — great for back sleepers and anyone who prefers a non-sinking feel. The most affordable quality full on Amazon.
Pros: Cheapest quality full mattress on Amazon · Firm support · Better airflow than all-foam
Cons: Thin comfort layer · Not for side sleepers
Check Linenspa Full on Amazon →
3. Sweetnight 10″ Gel Full — Best for Side Sleepers
⭐ 4.3/5 (15,000+ reviews, all sizes) | Est. Full Price: ~$160–$210 | Also: Twin–Cal King
Three-layer gel construction delivers the best pressure relief of any full mattress under $300. Solo side sleepers upgrading from a twin will notice immediate improvement in hip and shoulder comfort.
Pros: Three-layer pressure relief · Gel cooling · Great for side sleepers
Cons: Soft — not for stomach sleepers · Less brand recognition
Check Sweetnight Full on Amazon →
4. Tuft & Needle Original Full — Best Premium Full
⭐ 4.5/5 (22,000+ reviews, all sizes) | Est. Full Price: ~$300–$450 | Also: Twin–Cal King
For a solo sleeper who wants the best quality full available on Amazon without breaking $400, the T&N Original is the clear answer. Adaptive foam, 10-year warranty, noticeably superior construction vs. budget picks.
Pros: Best quality in this price tier · Adaptive foam · 10-year warranty
Cons: Pricier than budget picks · Firm feel
5. Novilla 10″ Gel Full — Best Value Full
⭐ 4.3/5 (12,000+ reviews, all sizes) | Est. Full Price: ~$150–$200 | Also: Twin–Cal King
Strong value at this price: gel cooling, medium-firm feel that works for back and side sleepers, and honest reviews from verified buyers. The pick when you want more than the Linenspa but don’t need the T&N upgrade.
Pros: Good value between budget and premium · Gel cooling · Medium-firm versatility
Cons: Average edge support · Not for strict stomach sleepers
Check Novilla Full on Amazon →
Full vs. Queen — Is the Upgrade Worth It?
Full: 54″ x 75″. Queen: 60″ x 80″. The 6″ extra width and 5″ extra length of a queen matters for couples but is optional for solo sleepers. If you have the room and might share the bed with a partner occasionally, the queen upgrade is worth the extra $50–$80 for peace of mind.
FAQ
What’s the best full mattress under $400?
The Zinus Green Tea 12″ full for value-first shoppers ($180–$240). The Tuft & Needle Original for quality-first shoppers (~$300–$450).
Is a full mattress big enough for two people?
Technically yes, but tight. A queen adds 6 inches of width — worth it for couples. A full works best for solo sleepers or kids who’ve outgrown a twin.
Can I find a good full mattress under $200?
Yes. The Zinus 12″ full is $180–$240, the Sweetnight 10″ full is $160–$210, and the Linenspa 8″ hybrid full is under $140.
Prices approximate — always verify on Amazon.
See also: Best Cheap Mattresses · Best Queen Under $500 · Best Under $300