Skip to Main Content
From as low as $35/mo* Prequalify Now
30-Day Price Match Guarantee
365-Night Home Trial
Forever Warranty™
Free Shipping & Returns
Find in Store
Why Nectar?
Help

Mattress Size Dimensions Guide

Not sure whether you need a Twin, Full, Queen, King, or California King? This guide helps you choose the right mattress size for your room and your sleep setup.

category-image
Twin and Full sizes

Twin and Full sizes

Twin and Full mattresses can work well for kids, solo sleepers, guest rooms, or tighter spaces. The right choice depends on how much personal sleeping space you want and how much room you have to work with.Shop Mattresses
Why Queen is so popular

Why Queen is so popular

Queen is often the default for a reason. It gives many sleepers a strong balance of space, practicality, and room fit — especially for primary bedrooms where you want more space without going all the way to a King.Shop Queen
When to go King or California King

When to go King or California King

King and California King are ideal when space, partner comfort, or taller sleepers are the priority. The better choice depends on whether you want more width or more length in the room.Shop King

Choose the right size for your setup

Icon

Your room

Make sure the mattress size leaves enough space for walking, nightstands, and normal bedroom flow.

Icon

Your body

Taller sleepers and active sleepers may benefit from more length or width than they first expect.

Icon

Your household

Sleeping with a partner, kids, or pets usually pushes the ideal size upward.

Need help picking the right size?

Browse Nectar’s mattress lineup and choose the size that fits your room and your sleep style.
Shop Mattresses