
To put things into perspective from the start, we spend almost a third of our lifetime in bed. Therefore, knowing which mattresses size is suitable for you can drastically improve your sleep and health quality. Our comparative analysis findings will highlight the various types of mattresses and which mattress companies reign supreme. We’ll provide comparative specifics over the different mattress sizes, address FAQs, and much more.
Mattress Sizes
#1. Layla - Buy a mattress with 0,00% APR for 12 months with Affirm and get Two Layla Memory Foam Pillows + Microfiber Sheet Set + Essential Mattress Protector for FREE.
#2. Helix sleep - Most Awarded mattress brand of 2020, have standard and luxury mattresses models, designed for all types of sleepers and price for any pocket. Helix sleep provides 180-Day Free Trial, 10-Year Warranty and Free Shipping within the US.
#3. AmeriSleep - Memory Foam, Hybrid and all-natural latex Organic Mattress manufacturer AmeriSleep provides 100-Night Free Trial and 20-Year Warranty for their customers. Also, AmeriSleep offers very tempting discounts and gifts like sheets, pillows, mattress protector or an adjustable bed when buying a mattress.
What Did We Review?
Today, we are reviewing the different mattress sizes, what bedding size is the most common in certain day-to-day situations, along with the pros and cons of each bedding size.
What Did We Find?
Our analysis will highlight the differences in bedding sizes, share the most popular mattress size bought today, render consumer insight into which beds are best for couples, and provide distinct advantages and disadvantages for each mattress size.
Benefits of Using
Below are four core benefits of using mattresses suitable for your body frame:
- Improved Support - Head-to-toe support throughout the night.
- Better Sleep Quality - Wake up feeling rested; size does matter.
- Improve Quality of Health - Better sleep equates to better health.
- Enhanced Pressure Point Relief - Muscle ache and pain relief.
Popular Mattress Sizes
Among the most popular mattress size would be queen mattresses, then followed by a twin bed.
How to Choose the Best
Choosing the best mattress size should include a careful combination of considering your body frame, your partner’s body size, the size of your bedroom, budget, and sleeping specialties (e.g., back, combination, stomach, or side sleepers). Depending upon those criteria, the following industry-leading mattress companies embedded here likely have what you’re seeking.
Mattress Size Insights
Crib Mattress
Specifically made to fit inside a crib, crib mattresses are just over 2 feet by 4 feet (27.25” x 51”) and within 6 inches of thickness. Due to safety regulations, the federal government regulates crib mattress sizes. Lastly, crib mattresses should be firm as soft bedding is correlated to sudden infant death syndrome.
- Pros
- Cons
- Budget-friendly
- Governmental regulation
- Improve baby’s blood circulation
- Less durable
- Not for long-term use
- May squeak if made with innersprings
Twin Mattress
The twin mattress is the smallest standardized bed, measuring just over 3 feet by 6 feet (38” x 75”). This mattress size is the most common for children bedding and have been known to last children into their teens and sometimes early college years.
- Pros
- Cons
- Great for bunk beds
- Great for single sleepers
- Ideal for small guest rooms
- Can be outgrown
- Not ideal for couples
- Not long enough for taller teens
Twin XL Mattress
The most common option in college dorms, the Twin XL mattress, provides an additional 5 inches of length to a twin mattress. Measuring 38” x 80”, Twin XL mattresses are a go-to choice for growing children and taller adults.
- Pros
- Cons
- Abundant legroom
- Great for guest beds
- Same length as Queen or King mattress
- Not suitable for couples
- Can be more expensive
- Bedding accessories may be hard to find
Full Mattress
Also referred to as double beds, a full size mattress is an excellent choice for single sleepers. Ideal for growing children, combination sleepers, and guest rooms, full size mattresses measure 54” by 75.”
- Pros
- Cons
- Great versatility
- Adequate space for single adults
- Good for budget-conscious shoppers
- Not ideal for sleeping couples
- Similar to queen mattress prices
- Not suitable for people over 6 feet
Queen Mattress
Queen mattresses are the most popular mattress size and measure 60 inches by 80 inches (5 feet wide by 6.5 feet long). Queen mattresses provide ample room for sleeping couples while still being small enough to avoid overcrowding a room.
- Pros
- Cons
- Most popular mattress size
- Cost-efficient due to high-demand
- Suitable for every type of sleeper
- Challenging to move (heavy)
- Less space than a King or Cal. King mattress
- Cramped feeling for couples sharing the bed with children
King Mattress
The King mattress measures 76 inches by 80 inches (6 ¼ feet by 6 ¾ feet), and it is the widest standard bed size. Many families with small children use king size mattresses for their additional width and broad accessory selection.
- Pros
- Cons
- Inexpensive accessories
- Maximum bedding width available
- Ideal for co-sleeping parents and children
- Difficult to move
- May make rooms feel overcrowded
- Rooms should be no less than 12 feet by 12 feet
California King Mattress
The longest standard bed size, the California king is 4 inches longer than a King size mattress and measures 4 inches less wide. California king mattresses are best suited for individuals and couples over 6 feet tall.
- Pros
- Cons
- Caters to nearly every kind of sleeper
- The most extended standard mattress size available
- Large enough for couples with children or pets
- Challenging to move
- The most expensive mattress size
- Rooms should measure at least 12’ x 12’
Our Top Product Picks
1. Saatva
Price Range: $799 to $1,899. Offer: Get 200$ off and FREE glove delivery
Trial period: 180-nights |
Warranty: 15 years |
Financing : 0% APR, Klarna |
Sizes: Twin, Twin XL, Full, Queen, King, California King |
The Saatva Classic is the most popular luxury hybrid innerspring mattress with Plush Soft (3), Luxury Firm (5-7), and Firm (8) firmnesses. Over 80% of sleepers prefer Luxury Firm for a perfect balance of comfort and uplifting support. For those hard-to-please couples, the Saatva Classic bridges the middle ground splendidly.

Premium Materials. White Glove Delivery, 24/7 Customer Support. Try It For 180 Nights
2. Puffy
Price Range: $795 to $1,995. Offer: $300 OFF + 2 FREE PILLOWS
Trial period: 101-nights |
Warranty: as long as you own the mattress |
Financing : 0% APR, Klarna |
Sizes: Twin, Twin XL, Full, Queen, King, California King |
The Puffy Lux’s body adapting dual cloud foam and total pressure relief make it suitable for back, stomach, and side sleepers. Cooling Cloud technology keeps hot sleepers cool while the mattress flexes a hypoallergenic, stain-resistant cover. The Lux mattress medium-plush (5-7) knows no equal for enhanced support and increased contouring.

Lifetime Warranty, Free Return. Up To $300 Off. Try It Now
3. Layla
Price Range: $1,049 to $1,699. Offer: Up To $200 Off Mattresses + 2 Free Layla Memory Foam Pillows
Trial period: 120-nights |
Warranty: Lifetime |
Financing : 0% APR, Affirm |
Sizes: Twin, Twin XL, Full, Queen, King, California King |
Hybrid or memory foam mattresses, made with two levels of firmness in one mattress (flippable firmness). Layla Mattress provides excellent edge support for sleepers of all weights and has great motion isolation. Mattresses made with cooling technology and a very breathable cover that zips off for easy cleaning. Layla Mattresses are adjustable base friendly, come with 10 Year warranty & Free Shipping.

Save Up To $400 On Select Mattress Sets
4. Helix sleep
Price Range: $600 to $2,249. Offer: Save up to $200 OFF & Get 2 FREE Dream Pillows
Trial period: 100-nights |
Warranty: 15 years |
Financing : 0% APR, Klarna, Katapult |
Sizes: Twin, Twin XL, Full, Queen, King, California King |
Sink in like a cloud with the soft feel of the Helix Sunset Luxe, perfect for side sleepers seeking additional pressure point relief, enhanced contouring, zoned lumbar support, and a responsive surface. The Sunset Luxe’s softer top layers render soft, lavishly plush comfort under a premium quilted pillow top.

Special Offer! Save Up To $200 Off Your Mattress
5. AmeriSleep
Price Range: $899 to $4,190. Offer: 30% Off Mattresses + Up To $399 In FREE Accessories
Trial period: 100-nights |
Warranty: 100-days |
Financing : - |
Sizes: Twin, Twin XL, Full, Queen, King, California King |
AmeriSleep is one of the most popular and best mattress companies. The assortment includes both hybrid or memory foam mattresses and completely eco-friendly latex mattresses. AmeriSleep provide one of the best guarantees for their products - 20 years warranty, as well as care about the quality and application of new developments in the production of mattresses such as: HIVE® technology that offers dynamic full-body support for a healthy sleeping position, lightweight cover that promotes airflow and prevents overheating, Bio-Pur® foam is more responsive and breathable than traditional foams.

Try Organic Healthy Sleep, Without All The Chemicals. 20-Year Warranty
The Bottom Line
If you are having difficulty sleeping, then your mattress may not be the right size. Size does matter in the world of mattresses. Without full-body support, you are taking away from your sleep and, ultimately, your health. If you aren’t entirely sure where to start, perhaps consider a queen size mattress as they are the most popular and often the most price-efficient option.
FAQ
- What are the seven standard mattress sizes available in 2021?
- How do I measure a mattress size?
- What is the most popular size mattress?
- What is the largest mattress size?
- What size mattress do most couples have?
- Are twin and double size mattresses the same?
Other Companies
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Written by: Mike Stownel
Staff Writer - Researcher
Mike is an experienced Researcher and Writer. Now his challenge is to test, compare, and review the best sleep products like mattresses, pillows and sheets