Which Mattress Size Is Right for You?
The right mattress size depends on how many people use the bed, how much room each person needs to move, and the inside dimensions of the bed frame. A 90 × 200 cm mattress suits many single sleepers. Couples usually gain more personal space from widths of 160, 180, or 200 cm.
Mattress Sizes at a Glance
The table below gives a practical starting point. Body size, room layout, and the bed frame still matter.
| Mattress size | Often suitable for | Available sleeping width |
|---|---|---|
| 80 × 200 cm | One person in a compact room or guest bed | 80 cm per person |
| 90 × 190 or 200 cm | One person and many standard single-bed frames | 90 cm per person |
| 100 × 200 cm | One person who wants additional room | 100 cm per person |
| 120 × 200 cm | A spacious single bed | 120 cm per person |
| 140 × 190 or 200 cm | A generous single bed or a compact bed for two | 70 cm each when shared |
| 160 × 200 cm | Two people with a space-conscious bedroom | 80 cm each |
| 180 × 200 cm | Two people who want the width of a single mattress each | 90 cm each |
| 200 × 200 cm | Two people who prefer maximum personal space | 100 cm each |
| 180 × 210 cm | Two people who also need extra length | 90 cm each |
How Much Width Does One Person Need?
For one adult, 90 × 200 cm fits many standard frames. An 80 cm width saves floor space. A width of 100 cm gives more freedom to move.
The German association Aktion Gesunder Rücken recommends at least 100 cm width as an ergonomic ideal for a single bed. It also emphasizes that the complete sleep system should fit the person using it. This makes 100 × 200 cm a useful benchmark, while 80 or 90 cm can remain sensible choices for smaller rooms and existing frames. Aktion Gesunder Rücken guidance for beds and mattresses
How Much Space Do Couples Need?
For couples, the clearest comparison is the width available to each person. A 140 cm mattress gives each sleeper 70 cm. A 160 cm mattress gives 80 cm each. At 180 cm, each person receives 90 cm, the same width as a classic single mattress. A 200 cm bed provides 100 cm each.
Calm sleepers who like closeness may feel comfortable on 140 or 160 cm. Frequent position changes, different sleep schedules, or a child joining the bed can make additional width useful. Leave enough clearance to enter the bed and move around it.
One Wide Mattress or Two Individual Mattresses?
Wide European double beds often allow two straightforward setups:
- Two mattresses of 80 × 200 cm create a 160 × 200 cm sleeping area.
- Two mattresses of 90 × 200 cm create a 180 × 200 cm sleeping area.
- Two mattresses of 100 × 200 cm create a 200 × 200 cm sleeping area.
One wide mattress creates a continuous surface and avoids a centre gap. One fitted sheet covers the full bed, and both partners sleep on the same comfort setup.
Two individual mattresses give each person a separate core and an independent choice of comfort side. They are easier to carry and turn. Movement does not travel through one continuous core, although the frame can still transmit some vibration.
The main practical consideration is the centre. Two mattresses may create a noticeable gap if the frame does not hold them closely together. Separate fitted sheets can make turning and care easier. A full-width fitted sheet can help the two mattresses feel more connected.
Which Mattress Length Is Right?
Aktion Gesunder Rücken recommends body height plus approximately 20 cm when choosing bed length. Under that guideline, a person around 170 cm tall can often use 190 cm length, while someone around 180 cm benefits from 200 cm. A 210 cm mattress can give taller sleepers more comfortable clearance at the head and feet.
Always measure the inside of the bed frame. The outside dimensions include the frame material and do not tell you which mattress will fit. A frame marked 180 × 200 cm may accept one mattress of that size or two mattresses of 90 × 200 cm, depending on its construction.
Scarnatti Sizes for Singles and Couples
The Scarnatti Unique 18 cm mattress is available in practical single and double sizes, including paired options using two 80 × 200 cm or two 90 × 200 cm mattresses.
The Scarnatti Excellence 27 cm mattress adds 100 × 200 cm, 180 × 210 cm, and 200 × 200 cm options. Two 100 × 200 cm mattresses form a 200 × 200 cm bed. Check current availability on the product page before ordering.
Measure Before You Order
- Measure the bed frame from inside edge to inside edge.
- Check both width and length in centimetres.
- Confirm whether the frame is designed for one mattress or two.
- Check the available space around the bed, including wardrobes and doors.
- For two mattresses, confirm that both halves have even support.
- Review the selected size once more before completing the order.
Key Takeaways
- Mattress width should reflect the number of sleepers, desired movement space, and actual room dimensions.
- Two 90 × 200 cm mattresses form a 180 × 200 cm bed and give each partner an independent sleeping surface.
- Measure the inside of the bed frame and allow roughly 20 cm beyond body height when choosing length.
Frequently Asked Questions
What mattress size is best for one person?
A 90 × 200 cm mattress is a practical choice for many adults and fits numerous standard single-bed frames. An 80 cm width saves floor space, while 100, 120, or 140 cm provides more freedom to move. The final choice should match the person, room, and inside dimensions of the bed frame.
Is 160 or 180 cm better for couples?
A 160 × 200 cm mattress gives each person 80 cm of width. A 180 × 200 cm mattress gives each person 90 cm, equal to a classic single mattress. The wider option is useful for restless sleepers or different schedules, provided the bedroom has enough space around the bed.
Is one large mattress or two small mattresses better?
One large mattress provides a seamless surface and avoids a centre gap. Two individual mattresses are easier to handle and let each partner choose a preferred comfort side. The better setup depends on whether you prioritize one continuous surface or more independence in comfort, movement, and mattress care.
How long should a mattress be?
A useful guideline is body height plus approximately 20 cm. A 200 cm mattress therefore suits many adults up to around 180 cm tall, while taller sleepers may prefer 210 cm. Measure the inside length of the bed frame before ordering because its outside dimensions can be larger than the mattress space.
What to Read Next
Once the dimensions are clear, compare the Scarnatti mattress profiles and choose whether one continuous mattress or two individual mattresses better fit your bed and sleeping habits. Couples who wake when the other person moves can also read our guide to partner movement and calmer shared sleep.
