Single Versus Twin Bed Size

Single Versus Twin Bed Size can help you compare these commonly used terms and choose the right fit for your bedroom, guest room or shared sleeping space. Explore key differences in sizing, room placement and everyday use to make shopping for a bed and mattress easier.

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Sleepy's Basic Innerspring Firm Mattress

8697

Starting at

$249⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Bed Partner
Allergies
Toss and Turn

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Mattress

3678

Starting at

$1599⁰⁰

$1799⁰⁰

$200 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Sleepy's Basic Box Spring Foundation

10654

Starting at

$169⁹⁹

Sleepy's Basic Foam Mattress

1418

Starting at

$349⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Greenwood 10.5" Firm Mattress

3371

Starting at

$339⁷⁷

$849⁹⁹

$510 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Toss and Turn
Temperature
Bed Partner

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2795

Starting at

$919⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest PressureSmart 2.0 Hybrid Medium 13" Mattress

1758

Starting at

$875⁰⁰

$1749⁹⁹

$875 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

3306

Starting at

$1199⁹⁹

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Allergies
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 11.25" Firm Mattress

2242

Starting at

$899⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tulo Bamboo 12" Medium Plush Green Tea Memory Foam Mattress

5567

Starting at

$629⁹⁹

Medium Comfort, best for

Back, Side, Stomach Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 13.5" Medium Pillow Top Mattress

1873

Starting at

$919⁹⁹

Medium Comfort, best for

Back, Side, Stomach Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Elite Adjustable Base

1129

Starting at

$1199⁹⁹

Save $299 with qualifying mattress purchase. Code: ELEVATE

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1753

Starting at

$799⁹⁹

Medium Comfort, best for

Back, Side, Stomach Sleepers
Allergies
Bed Partner
Temperature
Pain
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Purple Original Mattress

59759

Starting at

$880⁰⁰

$1099⁰⁰

$219 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Temperature
Pain
Bed Partner
Toss and Turn
Allergies

Sealy Essentials Winter Green 13" Plush Euro Pillow Top Mattress

549

Starting at

$1059⁹⁹

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn
Allergies

Sealy Essentials Winter Green 12" Medium Euro Top Mattress

604

Starting at

$849⁹⁹

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn
Allergies

Beautyrest Silver BRS900 12" Plush Mattress

1149

Starting at

$1399⁹⁹

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Nurture Night 14.5" Pillow Top Mattress

1137

Starting at

$799⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Nurture Night 13.5" Medium Mattress

1026

Starting at

$699⁰⁰

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Basics Metal Platform Bed

112

Starting at

$161⁴⁸

$189⁹⁹

$29 OFF

Serta Perfect Sleeper Nurture Night 13.5" Plush Mattress

922

Starting at

$699⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Essentials Winter Green 12" Plush Euro Top Mattress

393

Starting at

$849⁹⁹

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn
Allergies

Sealy Essentials Spruce 5.5" Firm Mattress

1372

Starting at

$349⁹⁹

$549⁹⁹

$200 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Hybrid Mattress

2973

Starting at

$1899⁰⁰

$2099⁰⁰

$200 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Purple Plus Mattress

2012

Starting at

$1280⁰⁰

$1599⁰⁰

$319 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Firm Mattress

1458

Starting at

$3899⁰⁰

$4399⁰⁰

$500 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

A single bed and a twin bed are generally the same mattress size, measuring approximately 38 inches wide by 75 inches long. “Single” is a common term for a bed designed for one person, while “twin” is the standard name used by most U.S. mattress retailers and manufacturers. Both options provide a compact sleep surface that fits well in children’s bedrooms, guest rooms, dorm rooms, studio apartments and shared spaces with bunk beds. A twin mattress can offer a comfortable, space-saving solution for one sleeper, but its narrower width may feel limiting for adults who move around during sleep or prefer extra room to stretch out. The main difference shoppers may notice is not the size itself but the terminology and available variations. A standard twin bed uses twin-size sheets, a twin bed frame and twin bedding, while a Twin XL mattress has the same 38-inch width as a twin but adds approximately five inches of length for a total of 80 inches. Twin XL bedding and bed frames are required for the longer mattress. Choosing between a single or twin bed typically comes down to regional naming preferences, room dimensions and the sleeper’s height. For growing children, college students or taller sleepers, a Twin XL bed may provide more legroom without taking up the space of a full-size mattress.

What types of bed frames work with single or twin mattresses? + -

Single and twin mattresses can typically be paired with platform beds, panel beds, bunk beds and adjustable bases designed for the corresponding mattress type. Check the frame’s product details to confirm compatibility before purchasing.

Can I use a box spring with a single or twin mattress? + -

A box spring may be compatible with some single or twin mattresses, while others are designed for use on a platform bed or foundation. Review the mattress and foundation requirements to choose the right support.

What bedding do I need for a single or twin mattress? + -

A complete bedding setup usually includes a fitted sheet, flat sheet, comforter or duvet and pillows. Choose bedding labeled for the corresponding mattress type for the best fit.

Are single and twin mattresses available in different comfort levels? + -

Yes. Single and twin mattresses may be available in comfort options such as plush, medium and firm, along with different feels including foam, innerspring and hybrid.

How should I care for a single or twin mattress? + -

Use a mattress protector, follow the manufacturer’s care instructions and keep the sleep surface free of moisture. Rotating the mattress may also be recommended, depending on its design.