Mattress too firm? Could a topper save you from replacing it?
A topper can add cushioning when your mattress is still level and in good condition, but the surface feels too firm. If the middle has already sagged, an extra layer will not fix it. Check the mattress and the base beneath it before deciding to buy a topper. 1, 2
You have barely settled into bed before you start shifting around, looking for a spot that feels better. The mattress looks fine.
You may not have had it very long. You just wish it felt a little softer.
Replacing it feels wasteful. Then you start looking at toppers, only to find more materials and thicknesses than you expected.
Before choosing one, take the sheets off and look at the mattress you already have. There are a few things you can check first.
Is the mattress still level, or has part of it dipped?
Surface feel and the condition of a mattress are worth considering separately. A softer mattress can still provide good support; a firm feel alone does not tell you that everything underneath is in good shape. 3
Still level, just a little too firm
A topper is worth considering when your mattress is still in good condition and you only want to change how its surface feels. It can add cushioning without replacing the whole mattress. 1, 2
Lie down as you usually would. What makes you want another layer: does the surface feel too hard, or have you realised that you simply prefer a softer bed?
If you have a chance to try a topper, take a moment to lie down and turn over. Pressing it with your palm gives only a first impression of how it feels.
A hollow that stays there
If the middle has dipped or part of the mattress is damaged, find out why before adding anything. A topper cannot restore a sagging mattress or repair damaged springs. 2
Look underneath, too. An unsuitable base can contribute to sagging, so check that yours is intact and set up according to your mattress manufacturer's instructions. 4
Take a photo of the dip and the base to send to the retailer. It can make the conversation easier, especially if the mattress is still under warranty.
It makes sense to keep a mattress that is still in good condition. First, work out what is making it feel less comfortable.
What should you check before buying?
Start by writing down the mattress length, width, and depth. The topper needs to match the surface it will sit on. 5
Do not rely on the words queen or king alone. Compare the measurements in centimetres on the product page with the mattress in your room.
Measure the mattress itself, without including the bed base. For a fitted topper, the mattress depth matters too: the skirt needs to reach around the sides. 5, 6
Check your existing sheets while you are there. Adding a topper makes the bed taller, while the pockets on your fitted sheet remain the same depth.
If those corners are already a tight fit, an extra layer may make them harder to tuck underneath. Our guide to fitted sheets that keep slipping explains what to check.
What is the difference between Topper Regular and Fitted?
Both Mojokoe options use 100% Premium Mojokoe MicroGel filling. They differ in thickness and how they attach to the mattress. 5
| Topper | Thickness | How it fits |
|---|---|---|
| Topper Regular | 3–4 cm | Four elastic corner straps |
| Topper Fitted | 5–6 cm | A fitted skirt wraps around the mattress sides |
Thicknesses are approximate and follow Mojokoe’s guide. The Fitted measurement is taken once the filling has expanded. 5
For Topper Fitted, the 30, 35, and 40 cm options refer to the depth of the mattress the skirt fits around. They are not the thickness of the filling. 5, 6
A 40 cm option is made to fit around a mattress of that depth. The cushioned layer itself is much thinner, as shown in the table.
Consider how much extra cushioning you want, then choose the attachment style that suits your mattress. The thickest option does not have to be your first choice if you only want a modest change.
All photographs in this article show Topper Regular, with an elastic strap at each corner.
How to fit Topper Regular
Spread the topper over the mattress and line up all four corners. Adjust its position so the cushioned layer sits evenly across the surface.
Slip each elastic corner strap underneath its mattress corner, following the product instructions. Topper Regular has four straps and leaves the mattress sides visible; it has no fitted skirt. 5
Once all four straps are in place, smooth the surface. Lie down for a moment to check how it feels. If the topper shifts or gathers to one side, check its position and attachment against the product guidance.
When dressing the bed, use a fitted sheet deep enough to cover the mattress and topper together. Check that each corner fits underneath securely.
Read the care label before you buy
Check how you will care for a topper before bringing it home. The original label on the Topper Regular shown here says Dry Clean Only. 7
Take it to a professional cleaner who offers dry cleaning and show them the care label. Do not soak or machine-wash it; washing instructions for another topper may not apply to this one.
Keep a photo of the label for later. If you contact Mojokoe about care, include the model name or a photo of your topper.
A mattress in good condition does not always need replacing. Once you know its condition and size, you can choose the extra layer it needs and get back to enjoying the bed you already own.
Sources and further reading
- IKEA: Mattress toppers
- Saatva: Are Mattress Toppers Worth It?
- Saatva: Mattress Firmness Guide
- Tempur-Pedic: Mattress sagging and support
- Mojokoe: Regular and Fitted topper guide
- Mojokoe: Topper Fitted King
- Original Mojokoe Topper Regular care label: Dry Clean Only