Learn how to decide which bed is best for your space and needs.

So, how do you choose the right size for you?

Read on to learn about each option and how to choose the perfect pick for you.

Bed dimensions with measurements illustrating twin, full, queen, king, and California king beds

The Spruce / Catherine Song

Start by measuring your room, then choosing a bed that fits comfortably within those dimensions.

They’re the most common choice for children’s ormulti-use guest bedrooms.

These beds are narrow and fit easily into the smallest bedroom.

Small bedroom with a three-drawer nightstand between two twin beds

The Spruce / Michelle Becker

Often twin beds have a “trundle” underneath to accommodate a sleep-over or second guest.

Twin beds are used forbunk bedstoo.

They’re often used in college dorm rooms to accommodate tall teens.

Full-size white four-poster bed with two brown throw pillows and blanket in a white bedroom

The Spruce / Michelle Becker

Tip

What is considered “standard” may vary slightly amongst manufacturers.

Before shopping for bedding, know the exactmeasurementsof the bed you have purchased.

Some standard fitted sheets may not fit.

The Tuft & Needle Mint Hybrid Mattress displayed on a wooden bed frame half set on a wooden floor and a beige rug

A queen-size bed gives each person more room without taking up too much floor space.

Double bedsalso known as fullwere the most common for two to sleep in until the 1960s.

At 75 inches long, a full-size bed may be too short for some taller adults.

Purple Restore Hybrid Mattress made on a bed frame

You might find a slightly larger queen-size bed called an “Olympic Queen.”

Read more about ourDiversity and Inclusion Pledgeto make The Spruce a site where all feel welcome.

King and California King-Size Beds

A standard king is also called an Eastern king.

A Purple restore mattress in a bedroom

A California king is called a Western king.

A standard king is about 4 inches wider but shorter than a California king.

Whenbuying sheets, be careful to purchase the right size.

Saatva Memory Foam Hybrid Mattress with pillows and throw

Before you go shopping, be sure to measure your bed exactly so you buy linens that will fit.

A king-size bed is sold with two box springs or frames and one mattress.

This makes it easier to move.

The Saatva Classic Mattress on a bed

This is the longest bed and the best choice for extra-tall people.

A California king bed set has one mattress and two half-width box springs which is manageable when moving.

Very tall single people can sleep from corner to corner and still be comfortable.

Bear Original Mattress with 2 Free Pillows

While it may seem appealing to have a custom-sized bed, you may have trouble finding bedding to fit.

However, the bed should all look proportionate to the space.

A bed can be too tall or low for a room and its surrounding furniture.

Bedroom with a king-size bed, sliding glass doors, palm tree plant, and woven circular wall hanging

The Spruce / Michelle Becker

Also, ensure you might comfortably get in and out of a low or tall bed.

Some people may prefer a double bed for extra space.

More American adults sleep on a queen-sized mattress than any other size.

Master bedroom and bathroom terminology: RESO discussion.

Real Estate Standards Organization.