Bed Dimensions Guide
Not sure which mattress size suits your space or lifestyle? Use our guide to explore mattress dimensions and discover the benefits of each size. From how much room you need to sleep comfortably to price comparisons and room fit, we cover it all. Once you’ve found the best mattress size for your needs, shop top-rated mattresses by size at Metro Mattress. We carry leading brands in every size to support sleepers of all ages.
Twin Mattress
38” X 75”
Twin size mattresses are a smart choice for smaller spaces and solo sleepers. Measuring 38” x 75”, they’re ideal for individuals under six feet tall and fit comfortably in compact rooms. Whether you're outfitting a child’s bedroom, furnishing a cozy guest space, or maximizing floor space in a studio apartment, a Twin mattress delivers reliable comfort in a space-saving design.
Twin XL Mattress
38" X 80"
Need a little more legroom? A Twin XL mattress is the same width as a standard Twin but adds 5 extra inches in length, making it a better fit for taller individuals. Common in college dorms and tight bedrooms, the Twin XL offers comfort for growing teens, students, or solo adults—without sacrificing valuable square footage.
Full Mattress
54" X 75"
If you're looking for more width to stretch out or occasionally share your bed, the Full size mattress offers a great middle ground. At 54 inches wide, it provides extra space compared to a Twin while still fitting into most bedrooms and guest rooms. It's a versatile option for young adults, single sleepers with pets, or those upgrading from a Twin.
Queen Mattress
60" X 80"
The Queen mattress is the most popular size for good reason—it balances space, comfort, and affordability. Measuring 60 inches wide and 80 inches long, it's perfect for couples or solo sleepers who want more room to spread out. Plus, Queen mattresses come with a wide selection of bed frames, accessories, and bedding styles, making them a go-to for any bedroom.
King Mattress
76" x 80"
For those who value maximum space, a King size mattress offers unmatched width and comfort. At 76 inches wide, it's perfect for couples who co-sleep with kids or pets. Before you buy, be sure to check your room dimensions—King mattresses require plenty of space to accommodate both the bed and your surrounding furniture.
California King Mattress
72" x 84"
The California King mattress is the ultimate choice for tall sleepers or those who need extra foot space. While slightly narrower than a standard King, it offers 4 additional inches of length—perfect for those over 6 feet tall or for pets that like to snooze near your feet. It’s a smart pick for larger bedrooms with a longer layout.