
Mattress Size Guide
Choosing the right mattress size starts with your available space, sleeping preferences and whether the bed will be shared.
Twin — 38" × 75"
Best for children, teenagers and compact rooms.
Twin XL — 38" × 80"
Provides five additional inches of length and is a popular choice for taller sleepers.
Full — 54" × 75"
Offers more width for one sleeper and works well in guest rooms.
Queen — 60" × 80"
The most popular size for couples and primary bedrooms.
King — 76" × 80"
Provides generous sleeping space for couples and families.
California King — 72" × 84"
Slightly narrower than a standard King but four inches longer, like the state of California.
Mattress dimensions are approximate and may vary slightly by manufacturer and model. Measure your room, bed frame, foundation and access points before purchasing.
Discover Casper at The Sleep Center
Get to know Casper mattresses and the benefits of shopping with your local sleep experts.
This video highlights Casper mattresses. Features and construction vary by model.
Why buy from The Sleep Center?
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Friendly, No-Pressure Guidance
Our knowledgeable Sleep Consultants take the time to understand your comfort preferences and help you compare mattresses without pressure. We are not satisfied until you are!
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Local Delivery by Our Team
Your mattress is delivered, set up and handled with care by Sleep Center employees—not an unfamiliar third-party delivery company, in our normal delivery zone. Free local delivery on qualifying purchases of $699 or more within our local delivery area.
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Customer-Friendly Policies
Shop confidently with our 120-Day Pricing Promise. If a qualifying competitor advertises an identical or comparable mattress for less, we’ll beat their price. We also offer friendly exchange policies with no exchange fees when applicable. Guidelines and exclusions apply.