super king mattresses
Our super king mattresses are our biggest yet, perfect for those who desire extra room to spread out or who share with a partner. Discover super spacious mattresses for enhanced comfort, allowing you to wake up feeling refreshed and rejuvenated every morning. Using premium materials and technologies, we tick all boxes for every type of sleeper.
Explore our range of super king mattresses, from firm options to memory foam, you’ll be sure to find your perfect one. Spacious and comfy, we also stock rolled variations for easy delivery and set-up.
Whether you enjoy ample space solo or with that special someone, our super king mattresses will ensure a good night’s rest.
Why not make your bed set-up the focal point of the room with a statement headboard to match?
Super King Mattress FAQs
What size is a super king mattress?
A standard super king mattress size in the UK measures 180cm x 200cm or 6'0” x 6'6”.
How wide is a super king mattress?
A super king size mattress has a width of 6ft, which makes it the largest mattress in both length and width at Silentnight.
This provides the most room for sleepers who love to stretch and turn in their sleep, or ample space for those who share with a partner.
How big should a room be for a super king mattress?
Ideally, a room that is around 125 square foot will sufficiently allow for a super king mattress with extra bedroom space alongside.
Generally, you want to leave around 25–30 inches of space between the bed frame and bedroom walls.
Can I use my existing bed frame with a super king mattress?
If your current bed frame is designed to accommodate a super king mattress, you can use it.
However, if your bed frame is smaller, such as a king size, or does not have the necessary support, you’ll need to invest in a new frame or base that is compatible with the larger mattress size.
