The mattress · soft, medium or firm
One mattress, made in three feels
A 28 cm hybrid mattress with pocket springs under soft foam layers and a quilted knit cover. Pick the feel you like lying on and one of five sizes; it arrives rolled in a box.
28 cm
Height (sample)
5 layers
Foam and pocket springs
3 feels
Soft, medium, firm
5 sizes
Twin to Cal King
From $549.00 · Example price
Sample specs for the demo store.
Shown: Medium, Queen
Quilted knit cover 3 cm
Comfort foam 5 cm
Transition foam 4 cm
Pocket springs 13 cm
Base foam 3 cm
Cutaway of the 28 cm mattress, top to bottom (sample depths).
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.
What is inside
Five layers, from cover to base
Most of how a mattress feels comes from what sits under the cover. Here is the Slumber, layer by layer.
01
Quilted knit cover · 3 cm
Soft to the touch and zips off for washing on a cool cycle.
02
Comfort foam · 5 cm
The layer that changes between Soft, Medium and Firm.
03
Transition foam · 4 cm
A steadier foam that stops you feeling the springs.
04
Pocket springs · 13 cm
Each spring sits in its own fabric pocket and moves on its own.
05
Base foam · 3 cm
A firm base that keeps the springs flat on the frame.
Sample build description and depths.
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 |
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 |
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.
Trial and returns
Try it for 100 nights (sample terms)
A mattress is hard to judge in a shop. Sleep on it at home, swap the feel once, or send it back.
01
Night 1
Unroll and try it
Sleep on it as it is. The first week always feels a little different.
02
Night 30
Give it a month
Most beds take a few weeks to settle. Returns open from night 30 (sample).
03
Night 60
Swap the feel once
Too soft or too firm? Swap once to another feel in the same size (sample).
04
Night 100
Keep it or send it back
Not for you? We collect it and refund the mattress price (sample terms).
Sample trial terms for the demo store. The shop sets the real terms.
Accessories
Pillows, toppers, sheets and a base
-
Cotton throw
$69.00 -
Pillowcase pair
Original price was: $29.00.$24.00Current price is: $24.00. -
Slumber bed base
Price range: $349.00 through $499.00 -
Percale sheet set
Price range: $85.00 through $129.00 -
Mattress protector
Price range: $55.00 through $89.00 -
Mattress topper
Price range: $149.00 through $229.00
Sample reviews
What owners might say
Sample reviews shown for the demo store.
★★★★★
We went for Medium and it was the easy middle we wanted. The box fitted up our narrow stairs.
Sample customer
Slumber Medium, Queen
★★★★★
I like a flat bed, and Firm is exactly that. The zip-off cover is a nice touch.
Sample customer
Slumber Firm, King
★★★★★
Swapped from Medium to Soft at night 60 and the new one came in a week.
Sample customer
Slumber Soft, Full
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).