Bed sizes and mattress sizes in the United States will be different than what is found in other countries. Bed sizing can be different between manufacturers and mattress sizing may vary and what the manufacture labels or names their products. We have compiled sizing for the most standard bed sizes for reference.
Shopping for Mattress Encasements, Bed Pads and Bedding Protection

Twin Beds
Twin beds in the United States Dimensions: 39” x 75”
Most suitable for one person or child with the average height of 5’6”.
Twin XL Beds
Twin XL Beds in the United States Dimensions: 39” x 80”
Most suitable for one person or child suitable for 6’ heigh person. Twin XL beds are commonly found in college dorm rooms and in retirement communities or hospital beds.
Full Beds
Full Beds in the United States Dimensions: 54” x 75”
This bed may be considered a little small for two people and best suitable for one person.
Queen Beds
Queen Beds in the United States Dimensions: 60” x 80”
One of the more popular sizes in the United States being used for a single. Can be ideal for taller people making it easier to move.
King Beds
King Beds in the United States Dimensions: 76” x 80”
With 80” width the king bed provides 36” for each person. This is a favorite size for couples, making it easy to move around.
Shopping for Mattress Pads and Encasements
Shop Our Products suitable for twin beds
Conni Fitted Bed Pad Sheet (white)
Bed Pad Dimensions (not including fitted sheet):
- Twin 36” x 39” x 15″
- Queen 60” x 85” x 15″
Conni Reusable Bed Pad (mauve, teal, white)
- Without Tuck-Ins: 33.5″ x 37″
- With Tuck-Ins: 39″ x 39″
Conni kids reusable bed pads (children’s print)
- Without Tuck-Ins: 33.5” x 37”
- With Tuck-Ins: 39” x 39”
Micro-Plush Waterproof Fitted Sheet
- Twin 36” x 75” x 15″
- Queen 60” x 80” x 15″
- King 72” x 80” x 15″
Shopping for College Dorm Bed Essentials
- Twin XL mattress encasement 39″x80″x12″
- Twin XL flat sheet 72″x114″