The mattress size determines how comfortably you sleep, and it's one of the most common mistakes made when buying a bed. Buying too small means unconsciously feeling restricted at night and waking up with stiffness in the morning. Buying too large means wasting energy on a bed that doesn't fit into the bedroom. Here's an honest overview.
Standard Sizes at a Glance
| Size (cm) | Name | Typical Use |
|---|---|---|
| 80×200 | Narrow Twin | Children's room, guest bed |
| 90×200 | Standard Twin | Adult individuals |
| 100×200 | Comfort Twin | More space for restless sleepers |
| 120×200 | French Size | Individual with plenty of space |
| 140×200 | Small Double | Couples in small bedrooms |
| 160×200 | Queen Size | Couples with standard comfort |
| 180×200 | King Size | Couples with lots of space |
| 200×200 | Super King | Couples + children or pet |
Recommendation by Number of Sleepers
Single Person
90×200 is the standard and sufficient for most adults. Those who move a lot at night or have broader shoulders will find 100×200 or 120×200 noticeably more comfortable.
Couple
160×200 is the most common compromise: comfortable enough, fits into standard bedrooms. 180×200 is the more honest recommendation, as each person then has the space of a single person. With 140×200, two adults share the width of a 70 cm mattress per person, which is tight, especially for side sleepers.
Family / Co-Sleeping
If you bring children or your dog into bed: 200×200 or two separate 140×200 next to each other.
Recommendation by Body Height
Standard length is 200 cm. The rule of thumb: The mattress should be at least 20 cm longer than you.
| Body Height | Recommended Mattress Length |
|---|---|
| up to 1.80 m | 200 cm (Standard) |
| 1.81 to 1.90 m | 210 cm |
| over 1.90 m | 220 cm |
Someone who is 1.90 m tall and sleeps on a 200 cm mattress will hit their feet against the footboard at night or slide up so far that the pillow falls off. 210 cm is a must here, not a luxury.
Double Bed: One Large or Two Single Mattresses?
For a 180×200 bed, you have the choice: one double mattress or two single mattresses 90×200 side-by-side. Both have advantages and disadvantages.
- One double mattress: no dividing line in the middle, more comfortable for cuddling, uniform firmness required
- Two single mattresses: each person can choose their own firmness, motion isolation for different sleep rhythms, easier to turn, individually washable
If you sleep with a partner who has a different weight or sleep rhythm, two single mattresses are clearly better. A topper over both covers the gap in the middle.
What to Consider with the Bed Frame
The mattress size is not the external dimension of the bed; it is the internal dimension. A "180 bed" often has an external width of 200 cm and a lying surface of 180 cm. Before buying a mattress, measure the slatted frame, not the bed edges.
For box spring beds, the measurement is usually clear (180×200 = 180×200 lying surface), but be careful with classic bed frames with drawers or upholstery.
Common Mistakes When Buying Sizes
- Buying too small: usually due to space constraints. Consequence: shoulder hangs over the edge, you wake up stiff.
- Too short: underestimating body height, feet hit the footboard.
- Too big for the bed frame: mattress doesn't fit into the slatted frame, hangs over, or bulges.
- Double mattress without needs check: for couples with different firmness preferences, two single mattresses are the better choice.
BeSports Sizes
All BeSports mattresses are available in common standard sizes. For special sizes (210 cm length, extra widths), just ask us; we usually make them as custom orders. Matching slatted frames are available in the same size selection.
