Compare models
Find the Slumber that feels right
One mattress in three feels and five sizes. Here is everything side by side: the models, the sizes, what is in the box and the full spec sheet.
Compare models
Soft, Medium and Firm side by side
Same cover, springs, base and height. The difference is the comfort foam and how the top feels.
| Slumber Soft | Slumber Medium | Slumber Firm | |
|---|---|---|---|
| Feel scale | 3 / 10 | 6 / 10 | 8 / 10 |
| Top feel | Plush, you sink in | Balanced | Flat and steady |
| Comfort foam | 5 cm, low density | 5 cm, medium density | 5 cm, high density |
| Springs | Pocket springs, 13 cm | Pocket springs, 13 cm | Pocket springs, 13 cm |
| Cover | Quilted knit, zip-off | Quilted knit, zip-off | Quilted knit, zip-off |
| Height | 28 cm | 28 cm | 28 cm |
| Delivery | Rolled in a box | Rolled in a box | Rolled in a box |
| Example price | From $549.00 | From $549.00 | From $549.00 |
Firmness picker
Soft, medium or firm?
The same five layers in every mattress. Only the comfort foam changes, so pick by how you like a bed to feel when you lie on it.
Soft
Slumber Soft
3 / 10 on our feel scale
You sink in a little before the springs take over. A cushioned, cradling feel.
- Comfort foam: low density (sample)
- Top feel: plush
- Height: 28 cm
Medium
Slumber Medium
6 / 10 on our feel scale
A balance of soft top and steady springs. The feel most people pick in our sample store.
- Comfort foam: medium density (sample)
- Top feel: balanced
- Height: 28 cm
Firm
Slumber Firm
8 / 10 on our feel scale
You lie on top of the mattress rather than in it. A flatter, steadier feel.
- Comfort foam: high density (sample)
- Top feel: firm and flat
- Height: 28 cm
Sample feel scale from 1 (softest) to 10 (firmest). Feel is personal: the trial lets you swap once.
Size table
Five sizes, one price per size
Every feel comes in every size at the same example price. Measure your bed frame inside the rails before you order.
- Same height in every size: 28 cm
- Fits standard frames and the Slumber bed base
- Sheets and toppers come in matching sizes
| Size | Width × length | Example price |
|---|---|---|
| Twin | 99 × 190 cm | $549.00 |
| Full | 137 × 190 cm | $699.00 |
| Queen | 152 × 203 cm | $799.00 |
| King | 193 × 203 cm | $949.00 |
| Cal King | 183 × 213 cm | $949.00 |

What's in the box
Rolled, boxed and easy to carry upstairs
The mattress is compressed and rolled into a box that fits through a normal door. Open it on the bed frame and let it rise.
Inside the box
- Slumber mattress, rolled and wrapped
- Safety cutter for the wrapping
- Care card with the cover washing guide
- Quick-start card
Unboxing in four steps
01
Carry the box
Two people, to the room where the bed is.
02
Unroll on the frame
Cut the outer wrap, unroll, then cut the inner wrap.
03
Let it rise
It takes its shape in a few hours; give it a day before you judge the feel.
04
Make the bed
Add a protector and sheets in the same size.
Sample contents and box size. Check the product page for your size.
Spec sheet
Every detail in one table
What stays the same in every Slumber, whichever feel and size you pick.
| Detail | Slumber mattress |
|---|---|
| Height | 28 cm |
| Layers | Cover, comfort foam, transition foam, pocket springs, base foam |
| Feels | Soft (3 / 10), Medium (6 / 10), Firm (8 / 10) |
| Sizes | Twin, Full, Queen, King, Cal King |
| Cover | Quilted knit, zip-off, washable |
| Turning | Rotate head to foot every few months; no flipping needed |
| Delivery | Rolled in a box, tracked |
| Warranty | Ten years (sample) |
FAQ
Questions before you buy
Not sure which feel or size? Email [email protected] or call (555) 014-6630.
Which feel should I choose?
Pick the feel you like lying on. Soft sinks in, Medium is balanced and Firm feels flat. If you are unsure, the trial lets you swap once (sample terms).
Will it fit my bed frame?
Measure inside the rails of your frame and compare with the size table. Every size is 28 cm high.
How long does it take to rise?
It takes its shape within a few hours. Give it a day or two before you judge the feel.
Can I wash the cover?
Yes, the knit cover zips off. Follow the care card in the box (sample care guide).
What does the warranty cover?
Faults in materials and workmanship for the period shown on the product page. Normal softening of the foam over time is not a fault (sample terms).